GitHub - veilair/java-development: An ongoing curated list of frameworks, books, articles, talks, screencasts, recordings, libraries, learning tutorials and resources about Java Development.

CyC2018/CS-Notes - 📚 技术面试必备基础知识、Leetcode、计算机操作系统、计算机网络、系统设计

Snailclimb/JavaGuide - 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！

iluwatar/java-design-patterns - Design patterns implemented in Java

doocs/advanced-java - 😮 Core Interview Questions & Answers For Experienced Java(Backend) Developers | 互联网 Java 工程师进阶知识完全扫盲：涵盖高并发、分布式、高可用、微服务、海量数据处理等领域知识

spring-projects/spring-boot - Spring Boot

elastic/elasticsearch - Free and Open, Distributed, RESTful Search Engine

macrozheng/mall - mall项目是一套电商系统，包括前台商城系统及后台管理系统，基于SpringBoot+MyBatis实现，采用Docker容器化部署。 前台商城系统包含首页门户、商品推荐、商品搜索、商品展示、购物车、订单流程、会员中心、客户服务、帮助中心等模块。 后台管理系统包含商品管理、订单管理、会员管理、促销管理、运营管理、内容管理、统计报表、财务管理、权限管理、设置等模块。

kdn251/interviews - Everything you need to know to get the job.

ReactiveX/RxJava - RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

google/guava - Google core libraries for Java

TheAlgorithms/Java - All Algorithms implemented in Java

square/retrofit - A type-safe HTTP client for Android and the JVM

apache/dubbo - Apache Dubbo is a high-performance, java based, open source RPC framework.

PhilJay/MPAndroidChart - A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

zxing/zxing - ZXing ("Zebra Crossing") barcode scanning library for Java, Android

skylot/jadx - Dex to Java decompiler

alibaba/arthas - Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas

ityouknow/spring-boot-examples - about learning Spring Boot via examples. Spring Boot 教程、技术栈示例代码，快速简单上手教程。

jeecgboot/jeecg-boot - 「企业级低代码平台」前后端分离架构SpringBoot 2.x，SpringCloud，Ant Design&Vue，Mybatis-plus，Shiro，JWT。强大的代码生成器让前后端代码一键生成，无需写任何代码! 引领新的开发模式OnlineCoding->代码生成->手工MERGE，帮助Java项目解决70%重复工作，让开发更关注业务，既能快速提高效率，帮助公司节省成本，同时又不失灵活性。

crossoverJie/JCSprout - 👨‍🎓 Java Core Sprout : basic, concurrent, algorithm

xkcoding/spring-boot-demo - 该项目已成功集成 actuator(监控)、admin(可视化监控)、logback(日志)、aopLog(通过AOP记录web请求日志)、统一异常处理(json级别和页面级别)、freemarker(模板引擎)、thymeleaf(模板引擎)、Beetl(模板引擎)、Enjoy(模板引擎)、JdbcTemplate(通用JDBC操作数据库)、JPA(强大的ORM框架)、mybatis(强大的ORM框架)、通用Mapper(快速操作Mybatis)、PageHelper(通用的Mybatis分页插件)、mybatis-plus(快速操作Mybatis)、BeetlSQL(强大的ORM框架)、upload(本地文件上传和七牛云文件上传)、redis(缓存)、ehcache(缓存)、email(发送各种类型邮件)、task(基础定时任务)、quartz(动态管理定时任务)、xxl-job(分布式定时任务)、swagger(API接口管理测试)、security(基于RBAC的动态权限认证)、SpringSession(Session共享)、Zookeeper(结合AOP实现分布式锁)、RabbitMQ(消息队列)、Kafka(消息队列)、websocket(服务端推送监控服务器运行信息)、socket.io(聊天室)、ureport2(中国式报表)、打包成war文件、集成 ElasticSearch(基本操作和高级查询)、Async(异步任务)、集成Dubbo(采用官方的starter)、MongoDB(文档数据库)、neo4j(图数据库)、docker(容器化)、JPA多数据源、Mybatis多数据源、代码生成器、GrayLog(日志收集)、JustAuth(第三方登录)、LDAP(增删改查)、动态添加/切换数据源、单机限流(AOP + Guava RateLimiter)、分布式限流(AOP + Redis + Lua)、ElasticSearch 7.x(使用官方 Rest High Level Client)、HTTPS、Flyway(数据库初始化)、UReport2(中国式复杂报表)。

alibaba/fastjson - A fast JSON parser/generator for Java.

dbeaver/dbeaver - Free universal database tool and SQL client

greenrobot/EventBus - Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

SeleniumHQ/selenium - A browser automation framework and ecosystem.

alibaba/easyexcel - 快速、简洁、解决大文件内存溢出的java处理Excel工具

hollischuang/toBeTopJavaer - To Be Top Javaer - Java工程师成神之路

dromara/hutool - 🍬A set of tools that keep Java sweet.

alibaba/spring-cloud-alibaba - Spring Cloud Alibaba provides a one-stop solution for application development for the distributed solutions of Alibaba middleware.

google/gson - A Java serialization/deserialization library to convert Java Objects into JSON and back

xuxueli/xxl-job - A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）

libgdx/libgdx - Desktop/Android/HTML5/iOS Java game development framework

google/ExoPlayer - An extensible media player for Android

jenkinsci/jenkins - Jenkins automation server

alibaba/Sentinel - A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

redisson/redisson - Redisson - Redis Java client with features of In-Memory Data Grid. Over 50 Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Publish / Subscribe, Bloom filter, Spring Cache, Tomcat, Scheduler, JCache API, Hibernate, MyBatis, RPC, local cache ...

apache/flink - Apache Flink

mybatis/mybatis-3 - MyBatis SQL mapper framework for Java

oracle/graal - GraalVM: Run Programs Faster Anywhere 🚀

dianping/cat - CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

brettwooldridge/HikariCP - 光 HikariCP・A solid, high-performance, JDBC connection pool at last.

winterbe/java8-tutorial - Modern Java - A Guide to Java 8

android10/Android-CleanArchitecture - This is a sample app that is part of a series of blog posts I have written about how to architect an android application using Uncle Bob's clean architecture approach.

LMAX-Exchange/disruptor - High Performance Inter-Thread Messaging Library

Anuken/Mindustry - The automation tower defense game

medcl/elasticsearch-analysis-ik - The IK Analysis plugin integrates Lucene IK analyzer into elasticsearch, support customized dictionary.

orhanobut/logger - ✔️ Simple, pretty and powerful logger for android

prestodb/presto - The official home of the Presto distributed SQL query engine for big data

Konloch/bytecode-viewer - A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)

eclipse-vertx/vert.x - Vert.x is a tool-kit for building reactive applications on the JVM

mockito/mockito - Most popular Mocking framework for unit tests written in Java

eclipse/deeplearning4j - Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running math code and a java based math library on top of the core c++ library. Also includes samediff: a pytorch/tensorflow like library for running deep learning using automatic differentiation.

openjdk/jdk - JDK main-line development

GoogleContainerTools/jib - 🏗 Build container images for your Java applications.

antlr/antlr4 - ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

realm/realm-java - Realm is a mobile database: a replacement for SQLite & ORMs

androidannotations/androidannotations - Fast Android Development. Easy maintainance.

Yalantis/uCrop - Image Cropping Library for Android

ben-manes/caffeine - A high performance caching library for Java

permissions-dispatcher/PermissionsDispatcher - A declarative API to handle Android runtime permissions.

OpenRefine/OpenRefine - OpenRefine is a free, open source power tool for working with messy data and improving it

roughike/BottomBar - (Deprecated) A custom view component that mimics the new Material Design Bottom Navigation pattern.

Blankj/awesome-java-leetcode - 👑 LeetCode of algorithms with java solution(updating).

stanfordnlp/CoreNLP - Stanford CoreNLP: A Java suite of core NLP tools.

Activiti/Activiti - Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.

junit-team/junit4 - A programmer-oriented testing framework for Java.

cats-oss/android-gpuimage - Android filters based on OpenGL (idea from GPUImage for iOS)

florent37/MaterialViewPager - A Material Design ViewPager easy to use library

facebook/buck - A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.

dropwizard/dropwizard - A damn simple library for building production-ready RESTful web services.

jwtk/jjwt - Java JWT: JSON Web Token for Java and Android

macrozheng/mall-swarm - mall-swarm是一套微服务商城系统，采用了 Spring Cloud Hoxton & Alibaba、Spring Boot 2.3、Oauth2、MyBatis、Docker、Elasticsearch、Kubernetes等核心技术，同时提供了基于Vue的管理后台方便快速搭建系统。mall-swarm在电商业务的基础集成了注册中心、配置中心、监控中心、网关等系统功能。文档齐全，附带全套Spring Cloud教程。

square/moshi - A modern JSON library for Kotlin and Java.

hs-web/hsweb-framework - hsweb (haʊs wɛb) 是一个基于spring-boot 2.x开发 ,首个使用全响应式编程的企业级后台管理系统基础项目。

OpenFeign/feign - Feign makes writing java http clients easier

questdb/questdb - An open source SQL database designed to process time series data, faster

dromara/Sa-Token - 这可能是史上功能最全的Java权限认证框架！目前已集成——登录认证、权限认证、分布式Session会话、微服务网关鉴权、单点登录、OAuth2.0、踢人下线、Redis集成、前后台分离、记住我模式、模拟他人账号、临时身份切换、账号封禁、多账号认证体系、注解式鉴权、路由拦截式鉴权、花式token生成、自动续签、同端互斥登录、会话治理、密码加密、jwt集成、Spring集成、WebFlux集成...

kaushikgopal/RxJava-Android-Samples - Learning RxJava for Android by example

dropwizard/metrics - 📈 Capturing JVM- and application-level metrics. So you know what's going on.

square/dagger - A fast dependency injector for Android and Java.

Bearded-Hen/Android-Bootstrap - Bootstrap style widgets for Android, with Glyph Icons

cymcsg/UltimateRecyclerView - A RecyclerView(advanced and flexible version of ListView in Android) with refreshing,loading more,animation and many other features.

vipshop/vjtools - The vip.com's java coding standard, libraries and tools

apache/cassandra - Mirror of Apache Cassandra

google/android-classyshark - Android and Java bytecode viewer

java-native-access/jna - Java Native Access

swagger-api/swagger-core - Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

cryptomator/cryptomator - Multi-platform transparent client-side encryption of your files in the cloud

ionic-team/capacitor - Build cross-platform Native Progressive Web Apps for iOS, Android, and the Web ⚡️

json-path/JsonPath - Java JsonPath implementation

checkstyle/checkstyle - Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.

spring-projects/spring-security - Spring Security

flyway/flyway - Flyway by Redgate • Database Migrations Made Easy.

apache/storm - Mirror of Apache Storm

NanoHttpd/nanohttpd - Tiny, easily embeddable HTTP server in Java.

processing/processing - Source code for the Processing Core and Development Environment (PDE)

NLPchina/ansj_seg - ansj分词.ict的真正java实现.分词效果速度都超过开源版的ict. 中文分词,人名识别,词性标注,用户自定义词典

rey5137/material - A library to bring fully animated Material Design components to pre-Lolipop Android.

AsyncHttpClient/async-http-client - Asynchronous Http and WebSocket Client library for Java

google/j2objc - A Java to iOS Objective-C translation tool and runtime.

apache/jmeter - Apache JMeter

real-logic/aeron - Efficient reliable UDP unicast, UDP multicast, and IPC message transport

google/error-prone - Catch common Java mistakes as compile-time errors

apache/tomcat - Apache Tomcat

prolificinteractive/material-calendarview - A Material design back port of Android's CalendarView

apache/incubator-shenyu - ShenYu is High-Performance Java API Gateway.

sshahine/JFoenix - JavaFX Material Design Library

rest-assured/rest-assured - Java DSL for easy testing of REST services

febsteam/FEBS-Shiro - Spring Boot 2.4.2，Shiro1.6.0 & Layui 2.5.6 权限管理系统。预览地址：http://47.104.70.138:8080/login

JakeWharton/DiskLruCache - Java implementation of a Disk-based LRU cache which specifically targets Android compatibility.

joelittlejohn/jsonschema2pojo - Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc

mrniko/netty-socketio - Socket.IO server implemented on Java. Realtime java framework

bytedeco/javacv - Java interface to OpenCV, FFmpeg, and more

kunal-kushwaha/DSA-Bootcamp-Java - This repository consists of the code samples, assignments, and the curriculum for the Community Classroom complete Data Structures & Algorithms Java bootcamp.

liyifeng1994/ssm - 手把手教你整合最优雅SSM框架：SpringMVC + Spring + MyBatis

testcontainers/testcontainers-java - Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

apache/zeppelin - Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

facebookarchive/rebound - A Java library that models spring dynamics and adds real world physics to your app.

springfox/springfox - Automated JSON API documentation for API's built with Spring

sockeqwe/mosby - A Model-View-Presenter / Model-View-Intent library for modern Android apps

PaperMC/Paper - High performance Spigot fork that aims to fix gameplay and mechanics inconsistencies

h2pl/Java-Tutorial - 【Java工程师面试复习指南】本仓库涵盖大部分Java程序员所需要掌握的核心知识，整合了互联网上的很多优质Java技术文章，力求打造为最完整最实用的Java开发者学习指南，如果对你有帮助，给个star告诉我吧，谢谢！

robolectric/robolectric - Android Unit Testing Framework

evant/gradle-retrolambda - A gradle plugin for getting java lambda support in java 6, 7 and android

graphql-java/graphql-java - GraphQL Java implementation

MindorksOpenSource/from-java-to-kotlin - From Java To Kotlin - Your Cheat Sheet For Java To Kotlin

changmingxie/tcc-transaction - tcc-transaction是TCC型事务java实现

scribejava/scribejava - Simple OAuth library for Java

Yalantis/Side-Menu.Android - Side menu with some categories to choose.

apache/beam - Apache Beam is a unified programming model for Batch and Streaming

MinecraftForge/MinecraftForge - Modifications to the Minecraft base files to assist in compatibility between mods.

micronaut-projects/micronaut-core - Micronaut Application Framework

CameraKit/camerakit-android - Library for Android Camera 1 and 2 APIs. Massively increase stability and reliability of photo and video capture on all Android devices.

Vedenin/useful-java-links - A list of useful Java frameworks, libraries, software and hello worlds examples

wasabeef/Blurry - Blurry is an easy blur library for Android

amitshekhariitbhu/RxJava2-Android-Samples - RxJava 2 Android Examples - Migration From RxJava 1 to RxJava 2 - How to use RxJava 2 in Android

junit-team/junit5 - ✅ The 5th major version of the programmer-friendly testing framework for Java and the JVM

orhanobut/dialogplus - Advanced dialog solution for android

btraceio/btrace - BTrace - a safe, dynamic tracing tool for the Java platform

frohoff/ysoserial - A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.

Ramotion/folding-cell-android - 📃 FoldingCell is a material design expanding content cell inspired by folding paper material made by @Ramotion

socketio/socket.io-client-java - Full-featured Socket.IO Client Library for Java, which is compatible with Socket.IO v1.0 and later.

hibernate/hibernate-orm - Hibernate's core Object/Relational Mapping functionality

wiremock/wiremock - A tool for mocking HTTP services

ffay/lanproxy - lanproxy是一个将局域网个人电脑、服务器代理到公网的内网穿透工具，支持tcp流量转发，可支持任何tcp上层协议（访问内网网站、本地支付接口调试、ssh访问、远程桌面、http代理、https代理、socks5代理...）。技术交流QQ群 678776401

AriaLyy/Aria - 下载可以很简单

mapstruct/mapstruct - An annotation processor for generating type-safe bean mappers

JodaOrg/joda-time - Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8.

alibaba/transmittable-thread-local - 📌 TransmittableThreadLocal (TTL), the missing Java™ std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even using thread pooling components.

mcxiaoke/packer-ng-plugin - 下一代Android打包工具，100个渠道包只需要10秒钟

jOOQ/jOOQ - jOOQ is the best way to write SQL in Java

raphw/byte-buddy - Runtime code generation for the Java virtual machine.

hazelcast/hazelcast - Open-source distributed computation and storage platform

trinodb/trino - Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

awsdocs/aws-doc-sdk-examples - Welcome to the AWS Code Examples Repository. This repo contains code examples used in the AWS documentation, AWS SDK Developer Guides, and more. For more information, see the Readme.rst file below.

vavr-io/vavr - vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

gephi/gephi - Gephi - The Open Graph Viz Platform

SplashCodes/JAViewer - 更优雅的驾车体验

981011512/-- - 停车场系统源码，停车场小程序，智能停车，Parking system，【功能介绍】：①兼容市面上主流的多家相机，理论上兼容所有硬件，可灵活扩展，②相机识别后数据自动上传到云端并记录，校验相机唯一id和硬件序列号，防止非法数据录入，③用户手机查询停车记录详情可自主缴费(支持微信，支付宝，银行接口支付，支持每个停车场指定不同的商户进行收款)，支付后出场在免费时间内会自动抬杆。④支持app上查询附近停车场(导航，可用车位数，停车场费用，优惠券，评分，评论等)，可预约车位。⑤断电断网支持岗亭人员使用app可接管硬件进行停车记录的录入。 【技术架构】：后端开发语言java，框架oauth2+springboot2+dubble，数据库mysql/mongodb/redis，即时通讯底层框架netty4，安卓和ios均为原生开发，后台管理模板vue专业定制

auth0/java-jwt - Java implementation of JSON Web Token (JWT)

spring-cloud/spring-cloud-netflix - Integration with Netflix OSS components

nisrulz/android-tips-tricks - ☑️ [Cheatsheet] Tips and tricks for Android Development

ankidroid/Anki-Android - AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.

jankotek/mapdb - MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

macrozheng/springcloud-learning - 一套涵盖大部分核心组件使用的Spring Cloud教程，包括Spring Cloud Alibaba及分布式事务Seata，基于Spring Cloud Greenwich及SpringBoot 2.1.7。22篇文章，篇篇精华，32个Demo，涵盖大部分应用场景。

microg/GmsCore - Free implementation of Play Services

lettuce-io/lettuce-core - Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.

puniverse/quasar - Fibers, Channels and Actors for the JVM

apache/hbase - Apache HBase

opensearch-project/OpenSearch - 🔎 Open source distributed and RESTful search engine.

deathmarine/Luyten - An Open Source Java Decompiler Gui for Procyon

google/google-java-format - Reformats Java source code to comply with Google Java Style.

2227324689/gpmall - 【咕泡学院实战项目】-基于SpringBoot+Dubbo构建的电商平台-微服务架构、商城、电商、微服务、高并发、kafka、Elasticsearch

cglib/cglib - cglib - Byte Code Generation Library is high level API to generate and transform Java byte code. It is used by AOP, testing, data access frameworks to generate dynamic proxy objects and intercept field access.

fuzhengwei/itstack-demo-design - 🎨 《重学Java设计模式》是一本互联网真实案例实践书籍。以落地解决方案为核心，从实际业务中抽离出，交易、营销、秒杀、中间件、源码等22个真实场景，来学习设计模式的运用。欢迎关注小傅哥，微信(fustack)，公众号：bugstack虫洞栈，博客：https://bugstack.cn

yasserg/crawler4j - Open Source Web Crawler for Java

awangdev/LintCode - Java Solutions to problems on LintCode/LeetCode

bitcoinj/bitcoinj - A library for working with Bitcoin

hansonwang99/Spring-Boot-In-Action - Spring Boot 系列实战合集

javagrowing/JGrowing - Java is Growing up but not only Java。Java成长路线，但学到不仅仅是Java。

zuihou/lamp-cloud - lamp-cloud 基于Jdk11 + SpringCloud + SpringBoot的微服务快速开发平台，其中的可配置的SaaS功能尤其闪耀， 具备RBAC功能、网关统一鉴权、Xss防跨站攻击、自动代码生成、多种存储系统、分布式事务、分布式定时任务等多个模块，支持多业务系统并行开发， 支持多服务并行开发，可以作为后端服务的开发脚手架。代码简洁，注释齐全，架构清晰，非常适合学习和企业作为基础框架使用。

zhanglei-workspace/shopping-management-system - 该项目为多个小项目的集合（持续更新中...）。内容类似淘宝、京东等网购管理系统以及图书管理、超市管理等系统。目的在于便于Java初级爱好者在学习完某一部分Java知识后有一个合适的项目锻炼、运用所学知识，完善知识体系。适用人群：Java基础到入门的爱好者。

kiegroup/drools - Drools is a rule engine, DMN engine and complex event processing (CEP) engine for Java.

apache/hive - Apache Hive

apache/camel - Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.

Yalantis/Phoenix - Phoenix Pull-to-Refresh

ZHENFENG13/spring-boot-projects - 该仓库中主要是 Spring Boot 的入门学习教程以及一些常用的 Spring Boot 实战项目教程，包括 Spring Boot 使用的各种示例代码，同时也包括一些实战项目的项目源码和效果展示，实战项目包括基本的 web 开发以及目前大家普遍使用的线上博客项目/企业大型商城系统/前后端分离实践项目等，摆脱各种 hello world 入门案例的束缚，真正的掌握 Spring Boot 开发。

javaparser/javaparser - Java 1-15 Parser and Abstract Syntax Tree for Java, including preview features to Java 13

stleary/JSON-java - A reference implementation of a JSON package in Java.

iNPUTmice/Conversations - Conversations is an open source XMPP/Jabber client for Android

rengwuxian/RxJavaSamples - RxJava 2 和 Retrofit 结合使用的几个最常见使用方式举例

ronmamo/reflections - Java runtime metadata analysis

objectbox/objectbox-java - ObjectBox is a superfast lightweight database for objects

phishman3579/java-algorithms-implementation - Algorithms and Data Structures implemented in Java

cabaletta/baritone - google maps for block game

yuliskov/SmartTubeNext - Ad free app for watching tube videos on Android TV boxes

CalebFenton/simplify - Android virtual machine and deobfuscator

chewiebug/GCViewer - Fork of tagtraum industries' GCViewer. Tagtraum stopped development in 2008, I aim to improve support for Sun's / Oracle's java 1.6+ garbage collector logs (including G1 collector)

coobird/thumbnailator - Thumbnailator - a thumbnail generation library for Java

brianway/java-learning - 旨在打造在线最佳的 Java 学习笔记，含博客讲解和源码实例，包括 Java SE 和 Java Web

bisq-network/bisq - A decentralized bitcoin exchange network

oldmanpushcart/greys-anatomy - Java诊断工具

Netflix/conductor - Conductor is a microservices orchestration engine.

vespa-engine/vespa - The open big data serving engine. https://vespa.ai

bytedeco/javacpp - The missing bridge between Java and native C++

apache/pinot - Apache Pinot - A realtime distributed OLAP datastore

powermock/powermock - PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.

apache/shiro - Apache Shiro

pmd/pmd - An extensible multilanguage static code analyzer.

TeamAmaze/AmazeFileManager - Material design file manager for Android

yangfuhai/ASimpleCache - a simple cache for android and java

oblac/jodd - Jodd! Lightweight. Java. Zero dependencies. Use what you like.

querydsl/querydsl - Unified Queries for Java

johncarl81/parceler - 📦 Android Parcelables made easy through code generation.

web3j/web3j - Lightweight Java and Android library for integration with Ethereum clients

google/open-location-code - Open Location Code is a library to generate short codes, called "plus codes", that can be used as digital addresses where street addresses don't exist.

mercyblitz/tech-weekly - 「小马哥技术周报」

j-easy/easy-rules - The simple, stupid rules engine for Java

failsafe-lib/failsafe - Fault tolerance and resilience patterns for the JVM

Atmosphere/atmosphere - Realtime Client Server Framework for the JVM, supporting WebSockets with Cross-Browser Fallbacks

luontola/retrolambda - Backport of Java 8's lambda expressions to Java 7, 6 and 5

LWJGL/lwjgl3 - LWJGL is a Java library that enables cross-platform access to popular native APIs useful in the development of graphics (OpenGL, Vulkan), audio (OpenAL), parallel computing (OpenCL, CUDA) and XR (OpenVR, LibOVR) applications.

jitsi/jitsi - Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.

CameraKit/blurkit-android - The missing Android blurring library. Fast blur-behind layout that parallels iOS.

tiann/epic - Dynamic java method AOP hook for Android(continution of Dexposed on ART), Supporting 5.0~11

graphhopper/graphhopper - Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

mock-server/mockserver - MockServer enables easy mocking of any system you integrate with via HTTP or HTTPS with clients written in Java, JavaScript and Ruby. MockServer also includes a proxy that introspects all proxied traffic including encrypted SSL traffic and supports Port Forwarding, Web Proxying (i.e. HTTP proxy), HTTPS Tunneling Proxying (using HTTP CONNECT) and SOCKS Proxying (i.e. dynamic port forwarding).

sofastack/sofa-rpc - SOFARPC is a high-performance, high-extensibility, production-level Java RPC framework.

saysky/ForestBlog - 一个简单漂亮的SSM(Spring+SpringMVC+Mybatis)博客系统

oracle/opengrok - OpenGrok is a fast and usable source code search and cross reference engine, written in Java

mpusher/mpush - MPush开源实时消息推送系统

Col-E/Recaf - The modern Java bytecode editor

JSQLParser/JSqlParser - JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern

knowm/XChange - XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.

jboss-javassist/javassist - Java bytecode engineering toolkit

RedSpider1/concurrent - 这是RedSpider社区成员原创与维护的Java多线程系列文章。

traccar/traccar - Traccar GPS Tracking System

promeG/TinyPinyin - 适用于Java和Android的快速、低内存占用的汉字转拼音库。

spring-cloud/spring-cloud-gateway - A Gateway built on Spring Framework 5.x and Spring Boot 2.x providing routing and more.

remkop/picocli - Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.

liuyubobobo/Play-with-Algorithms - Codes of my MOOC Course , Both in C++ and Java language. Updated contents and practices are also included. 我在慕课网上的课程《算法与数据结构》示例代码，包括C++和Java版本。课程的更多更新内容及辅助练习也将逐步添加进这个代码仓。

networknt/light-4j - A fast, lightweight and more productive microservices framework

zlt2000/microservices-platform - 基于SpringBoot2.x、SpringCloud和SpringCloudAlibaba并采用前后端分离的企业级微服务多租户系统架构。并引入组件化的思想实现高内聚低耦合，项目代码简洁注释丰富上手容易，适合学习和企业中使用。真正实现了基于RBAC、jwt和oauth2的无状态统一权限认证的解决方案，面向互联网设计同时适合B端和C端用户，支持CI/CD多环境部署，并提供应用管理方便第三方系统接入；同时还集合各种微服务治理功能和监控功能。模块包括:企业级的认证系统、开发平台、应用监控、慢sql监控、统一日志、单点登录、Redis分布式高速缓存、配置中心、分布式任务调度、接口文档、代码生成等等。

sherxon/AlgoDS - Implementation of Algorithms and Data Structures, Problems and Solutions

subhra74/xdm - Powerfull download accelerator and video downloader

eclipse/jetty.project - Eclipse Jetty® - Web Container & Clients - supports HTTP/2, HTTP/1.1, HTTP/1.0, websocket, servlets, and more

PowerJob/PowerJob - Enterprise job scheduling middleware with distributed computing ability.

crate/crate - CrateDB is a distributed SQL database that makes it simple to store and analyze massive amounts of machine data in real-time.

MovingBlocks/Terasology - Terasology - open source voxel world

kevinsawicki/http-request - Java HTTP Request Library

ragunathjawahar/android-saripaar - UI form validation library for Android

qunarcorp/bistoury - Bistoury是去哪儿网的java应用生产问题诊断工具，提供了一站式的问题诊断方案

micrometer-metrics/micrometer - An application metrics facade for the most popular monitoring tools. Think SLF4J, but for metrics.

alibaba/jetcache - JetCache is a Java cache framework.

fyhertz/libstreaming - A solution for streaming H.264, H.263, AMR, AAC using RTP on Android

chenBingX/SuperTextView - Hi，Developer，Welcome to use SuperTextView ！

NotFound9/interviewGuide - 《大厂面试指北》——包括Java基础、JVM、数据库、mysql、redis、计算机网络、算法、数据结构、操作系统、设计模式、系统设计、框架原理。最佳阅读地址：http://notfound9.github.io/interviewGuide/

jfinal/jfinal - JAVA WEB + ORM Framework

DiUS/java-faker - Brings the popular ruby faker gem to Java

fishercoder1534/Leetcode - Solutions to LeetCode problems; updated daily. Subscribe to my YouTube channel for more.

jbloch/effective-java-3e-source-code - The source code from the third edition of Effective Java, with minor additions as necessary to make it runnable.

h2database/h2database - H2 is an embeddable RDBMS written in Java.

WritingMinds/ffmpeg-android-java - Android java library for FFmpeg binary compiled using https://github.com/writingminds/ffmpeg-android

alibaba/QLExpress - QLExpress is a powerful, lightweight, dynamic language for the Java platform aimed at improving developers’ productivity in different business scenes.

anggrayudi/android-hidden-api - A library that provides access to Android hidden APIs and internal resources.

spockframework/spock - The Enterprise-ready testing and specification framework.

requery/requery - requery - modern SQL based query & persistence for Java / Kotlin / Android

jacoco/jacoco - 🔬 Java Code Coverage Library

guoguibing/librec - LibRec: A Leading Java Library for Recommender Systems, see

uber/NullAway - A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead

immutables/immutables - Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included

lenve/JavaEETest - Spring、SpringMVC、MyBatis、Spring Boot案例

Red5/red5-server - Red5 Server core

supertokens/supertokens-core - Open source alternative to Auth0 / Firebase Auth / AWS Cognito

jasonross/Nuwa - Nuwa, pure java implementation, can hotfix your android application.

mxdldev/android-mvp-mvvm-flytour - 🔥🔥🔥 FlyTour是Android MVVM+MVP+Dagger2+Retrofit+RxJava+组件化+插件组成的双编码架构+双工程架构+双语言Android应用开发框架，通过不断的升级迭代该框架已经有了十个不同的版本，5.0之前工程架构采用gradle配置实现组件化，5.0之后的工程架构采用VirtualAPK实现了插件化，5.0之前采用Java编码实现，5.0之后采用Kotlin编码实现，编码架构由MVVM和MVP组成，工程架构和编码架构及编码语言开发者可根据自己具体的项目实际需求去决定选择使用，该框架是Android组件化、Android插件化、Android MVP架构、Android MVVM架构的集大成者，帮助你快速的搭建自己的App项目开发框架，以便把主要的精力放在自己的项目的业务功能实现上，另外在长期的工作实践中总结整理大量的实用工具类在项目lib_common组件的util包当中方便大家调用。

apache/nifi - Apache NiFi

ZieIony/Carbon - Material Design implementation for Android 4.0+. Shadows, ripples, vectors, fonts, animations, widgets, rounded corners and more.

liquibase/liquibase - Main Liquibase Source

yusugomori/DeepLearning - Deep Learning (Python, C, C++, Java, Scala, Go)

oshi/oshi - Native Operating System and Hardware Information

spring-cloud/spring-cloud-kubernetes - Kubernetes integration with Spring Cloud Discovery Client, Configuration, etc...

ltsopensource/light-task-scheduler - Distributed Scheduled Job Framework

gouthampradhan/leetcode - Leetcode solutions

GeyserMC/Geyser - A bridge/proxy allowing you to connect to Minecraft: Java Edition servers with Minecraft: Bedrock Edition.

apache/maven - Apache Maven core

jagrosh/MusicBot - 🎶 A Discord music bot that's easy to set up and run yourself!

tronprotocol/java-tron - Java implementation of the Tron whitepaper

CrawlScript/WebCollector - WebCollector is an open source web crawler framework based on Java.It provides some simple interfaces for crawling the Web,you can setup a multi-threaded web crawler in less than 5 minutes.

nanchen2251/RxJava2Examples - 🔥RxJava2 Examples —— 这可能是从 RxJava1 跳到 RxJava2（学习 RxJava2 ）最好的例子 Demo：https://github.com/nanchen2251/RxJava2Examples

apache/calcite - Apache Calcite

szerhusenBC/jwt-spring-security-demo - A demo for using JWT (Json Web Token) with Spring Security and Spring Boot 2

AweiLoveAndroid/CommonDevKnowledge - 🔥 🌟⭐⭐⭐ ⭐ 史上最全的BAT大厂Android面试题汇集，以及常用的Android开发的一些技能点，冷门知识点汇总，开发中遇到的坑汇总等干货。

jeecgboot/JimuReport - 「低代码可视化报表」类似excel操作风格，在线拖拽完成设计！功能涵盖: 报表设计、图形报表、打印设计、大屏设计等，完全免费！秉承“简单、易用、专业”的产品理念，极大的降低报表开发难度、缩短开发周期、解决各类报表难题。

jMonkeyEngine/jmonkeyengine - A complete 3-D game development suite written in Java.

awaitility/awaitility - Awaitility is a small Java DSL for synchronizing asynchronous operations

killme2008/aviatorscript - A high performance scripting language hosted on the JVM.

eclipse-openj9/openj9 - Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.

FinalTeam/RxGalleryFinal - 图片选择库，单选/多选、拍照、裁剪、压缩，自定义。包括视频选择和录制。

jtablesaw/tablesaw - Java dataframe and visualization library

Mojang/brigadier - Brigadier is a command parser & dispatcher, designed and developed for Minecraft: Java Edition.

florent37/ExpectAnim - Describe your animation and run !

google/binnavi - BinNavi is a binary analysis IDE that allows to inspect, navigate, edit and annotate control flow graphs and call graphs of disassembled code.

RipMeApp/ripme - Downloads albums in bulk

rubenlagus/TelegramBots - Java library to create bots using Telegram Bots API

Yalantis/GuillotineMenu-Android - Neat library, that provides a simple way to implement guillotine-styled animation

youlookwhat/DesignPattern - 📚 Java 23种设计模式全归纳

bastillion-io/Bastillion - Bastillion is a web-based SSH console that centrally manages administrative access to systems. Web-based administration is combined with management and distribution of user's public SSH keys.

pedrovgs/Algorithms - Solutions for some common algorithm problems written in Java.

lizhangqu/CoreLink - Android 开发中的日常积累

nextcloud/android - 📱 Nextcloud Android app

bitcoin-wallet/bitcoin-wallet - Bitcoin Wallet app for your Android device. Standalone Bitcoin node, no centralized backend required.

apache/curator - Apache Curator

chanjarster/weixin-java-tools - 微信公众号、企业号Java SDK

DV8FromTheWorld/JDA - Java wrapper for the popular chat & VOIP service: Discord https://discord.com

sofastack/sofa-jraft - A production-grade java implementation of RAFT consensus algorithm.

r0adkll/Slidr - Easily add slide to dismiss functionality to an Activity

spring-projects/spring-loaded - Java agent that enables class reloading in a running JVM

rememberber/WePush - 专注批量推送的小而美的工具，目前支持：模板消息-公众号、模板消息-小程序、微信客服消息、微信企业号/企业微信消息、阿里云短信、阿里大于模板短信 、腾讯云短信、云片网短信、E-Mail、HTTP请求、钉钉、华为云短信、百度云短信、又拍云短信、七牛云短信

kabouzeid/Phonograph - A material designed music player for Android

brianway/webporter - 基于 webmagic 的 Java 爬虫应用

apache/logging-log4j2 - Apache Log4j 2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements available in Logback while fixing some inherent problems in Logback's architecture.

spotify/docker-maven-plugin - INACTIVE: A maven plugin for Docker

Twitter4J/Twitter4J - Twitter4J is an open-sourced, mavenized and Google App Engine safe Java library for the Twitter API which is released under the Apache License 2.0.

spotbugs/spotbugs - SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.

geoserver/geoserver - Official GeoServer repository

AxonFramework/AxonFramework - Framework for Evolutionary Event-Driven Microservices on the JVM

spring-projects/spring-data-elasticsearch - Provide support to increase developer productivity in Java when using Elasticsearch. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

spotify/dockerfile-maven - MATURE: A set of Maven tools for dealing with Dockerfiles

yingLanNull/ShadowImageView - 🔥可以根据图片内容变阴影颜色，更加细腻的阴影效果 It can change color according to the picture, more delicate shadow effect

oracle/helidon - Java libraries for writing microservices

real-logic/simple-binary-encoding - Simple Binary Encoding (SBE) - High Performance Message Codec

AdoptOpenJDK/jitwatch - Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.

shopizer-ecommerce/shopizer - Shopizer java e-commerce software

VerbalExpressions/JavaVerbalExpressions - Java regular expressions made easy.

williamfiset/DEPRECATED-data-structures - A collection of powerful data structures

jOOQ/jOOR - jOOR - Fluent Reflection in Java jOOR is a very simple fluent API that gives access to your Java Class structures in a more intuitive way. The JDK's reflection APIs are hard and verbose to use. Other languages have much simpler constructs to access type meta information at runtime. Let us make Java reflection better.

JsonChao/Awesome-WanAndroid - ⚡致力于打造一款极致体验的 http://www.wanandroid.com/ 客户端，知识和美是可以并存的哦QAQn(≧▽≦)n

OpenHFT/Chronicle-Queue - Micro second messaging that stores everything to disk

Ramotion/paper-onboarding-android - PaperOnboarding is a material design slider made by @Ramotion

javamelody/javamelody - JavaMelody : monitoring of JavaEE applications

balysv/material-menu - Animations for Android L drawer, back, dismiss and check icons

Krupen/FabulousFilter - Android library to animate Floating Action Button to Bottom Sheet Dialog and vice-versa

RoaringBitmap/RoaringBitmap - A better compressed bitset in Java

sannies/mp4parser - A Java API to read, write and create MP4 files

FudanNLP/fnlp - 中文自然语言处理工具包 Toolkit for Chinese natural language processing

kiegroup/optaplanner - AI constraint solver in Java to optimize the vehicle routing problem, employee rostering, task assignment, maintenance scheduling, conference scheduling and other planning problems.

javaee-samples/javaee7-samples - Java EE 7 Samples

Qihoo360/ArgusAPM - Powerful, comprehensive (Android) application performance management platform. 360线上移动性能检测平台

mongodb/mongo-java-driver - The Java driver for MongoDB

jetlinks/jetlinks-community - JetLinks 基于Java8,Spring Boot 2.x ,WebFlux,Netty,Vert.x,Reactor等开发, 是一个全响应式的企业级物联网平台。支持统一物模型管理,多种设备,多种厂家,统一管理。统一设备连接管理,多协议适配(TCP,MQTT,UDP,CoAP,HTTP等),屏蔽网络编程复杂性,灵活接入不同厂家不同协议等设备。实时数据处理,设备告警,消息通知,数据转发。地理位置,数据可视化等。能帮助你快速建立物联网相关业务系统。

igniterealtime/Openfire - An XMPP server licensed under the Open Source Apache License.

nutzam/nutz - Nutz -- Web Framework(Mvc/Ioc/Aop/Dao/Json) for ALL Java developer

ZHENFENG13/My-Blog - 🌴A simple & beautiful blogging system implemented with spring-boot & thymeleaf & mybatis My Blog 是由 SpringBoot + Mybatis + Thymeleaf 等技术实现的 Java 博客系统，页面美观、功能齐全、部署简单及完善的代码，一定会给使用者无与伦比的体验

camunda/camunda-bpm-platform - Flexible framework for workflow and decision automation with BPMN and DMN. Integration with Spring, Spring Boot, CDI.

fuzhengwei/small-spring - 🌱《 Spring 手撸专栏》，本专栏以 Spring 源码学习为目的，通过手写简化版 Spring 框架，了解 Spring 核心原理。在手写的过程中会简化 Spring 源码，摘取整体框架中的核心逻辑，简化代码实现过程，保留核心功能，例如：IOC、AOP、Bean生命周期、上下文、作用域、资源处理等内容实现。

JabRef/jabref - Graphical Java application for managing BibTeX and biblatex (.bib) databases

tdebatty/java-string-similarity - Implementation of various string similarity and distance algorithms: Levenshtein, Jaro-winkler, n-Gram, Q-Gram, Jaccard index, Longest Common Subsequence edit distance, cosine similarity ...

AlmasB/FXGL - Java / JavaFX / Kotlin Game Library (Engine)

VictorAlbertos/RxCache - Reactive caching library for Android and Java

square/tape - A lightning fast, transactional, file-based FIFO for Android and Java.

fesh0r/fernflower - Unofficial mirror of FernFlower Java decompiler (All pulls should be submitted upstream)

nayuki/QR-Code-generator - High-quality QR Code generator library in Java, TypeScript/JavaScript, Python, Rust, C++, C.

liyiorg/weixin-popular - 微信SDK JAVA (公众平台、开放平台、 商户平台、 服务商平台)

RodneyShag/HackerRank_solutions - 317 efficient solutions to HackerRank problems

charles2gan/GDA-android-reversing-Tool - GDA is a new fast and powerful decompiler in C++(working without Java VM) for the APK, DEX, ODEX, OAT, JAR, AAR, and CLASS file. which supports malicious behavior detection, privacy leaking detection, vulnerability detection, path solving, packer identification, variable tracking, deobfuscation, python&java scripts, device memory extraction, data decryption, and encryption, etc.

cucumber/cucumber-jvm - Cucumber for the JVM

google/truth - Fluent assertions for Java and Android

s4kibs4mi/java-developer-roadmap - Roadmap to becoming a Java developer in 2021

apache/incubator-linkis - Linkis helps easily connect to various back-end computation/storage engines(Spark, Python, TiDB...), exposes various interfaces(REST, JDBC, Java ...), with multi-tenancy, high performance, and resource control.

JPressProjects/jpress - JPress，一个使用 Java 开发的建站神器，目前已经有 10w+ 网站使用 JPress 进行驱动，其中包括多个政府机构，200+上市公司，中科院、红+字会等。

federicoiosue/Omni-Notes - Open source note-taking application for Android

balysv/material-ripple - Android L Ripple effect wrapper for Views

Sayi/poi-tl - Generate awesome word(docx) with template

vdurmont/emoji-java - The missing emoji library for Java ❤️

liweiwei1419/LeetCode-Solutions-in-Good-Style - 首页已经更新，希望能对大家有帮助。

EngineHub/WorldEdit - 🗺️ Minecraft map editor and mod

xtuhcy/gecco - Easy to use lightweight web crawler（易用的轻量化网络爬虫）

diffplug/spotless - Keep your code spotless

JetBrains/skija - Java bindings for Skia

qos-ch/logback - The reliable, generic, fast and flexible logging framework for Java.

LinShunKang/MyPerf4J - High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.

deepjavalibrary/djl - An Engine-Agnostic Deep Learning Framework in Java

apache/nutch - Apache Nutch is an extensible and scalable web crawler

Ramotion/cardslider-android - 🃏 Cardslider is a material design UI controller that allows you to swipe through cards with pictures and accompanying descriptions.

pilgr/Paper - Paper is a fast NoSQL-like storage for Java/Kotlin objects on Android with automatic schema migration support.

igniterealtime/Smack - A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs

caoxinyu/RedisClient - Java Redis Client GUI Tool

thymeleaf/thymeleaf - Thymeleaf is a modern server-side Java template engine for both web and standalone environments.

spring-projects/spring-data-jpa - Simplifies the development of creating a JPA-based data access layer.

Yalantis/Euclid - User Profile Interface Animation

Kong/unirest-java - Unirest in Java: Simplified, lightweight HTTP client library.

addthis/stream-lib - Stream summarizer and cardinality estimator.

tchiotludo/akhq - Kafka GUI for Apache Kafka to manage topics, topics data, consumers group, schema registry, connect and more...

fabric8io/kubernetes-client - Java client for Kubernetes & OpenShift

apache/flume - Mirror of Apache Flume

Zhaoss/WeiXinRecordedDemo - 仿微信视频拍摄UI, 基于ffmpeg的视频录制编辑

timusus/Shuttle - Shuttle Music Player

LibrePDF/OpenPDF - OpenPDF is a free Java library for creating and editing PDF files with a LGPL and MPL open source license. OpenPDF is based on a fork of iText. We welcome contributions from other developers. Please feel free to submit pull-requests and bugreports to this GitHub repository. ⛺

atomix/atomix - A reactive Java framework for building fault-tolerant distributed systems

steelkiwi/cropiwa - 📐 Configurable Custom Crop widget for Android

MindorksOpenSource/android-developer-roadmap - Android Developer Roadmap - A complete roadmap to learn Android App Development

camunda-cloud/zeebe - Distributed Workflow Engine for Microservices Orchestration

docker-java/docker-java - Java Docker API Client

Yalantis/Horizon - Horizon - Simple visual equaliser for Android

hidroh/materialistic - A material-design Hacker News Android reader

kubernetes-client/java - Official Java client library for kubernetes

classgraph/classgraph - An uber-fast parallelized Java classpath scanner and module scanner.

vipshop/Saturn - The vip.com's distributed job scheduling platform.

AsamK/signal-cli - signal-cli provides an unofficial commandline and dbus interface for signalapp/libsignal-service-java

openzipkin/brave - Java distributed tracing implementation compatible with Zipkin backend services.

akexorcist/RoundCornerProgressBar - [Android] Round Corner Progress Bar Library for Android

eclipsesource/J2V8 - Java Bindings for V8

internetarchive/heritrix3 - Heritrix is the Internet Archive's open-source, extensible, web-scale, archival-quality web crawler project.

ethereum/ethereumj - DEPRECATED! Java implementation of the Ethereum yellowpaper. For JSON-RPC and other client features check Ethereum Harmony

real-logic/agrona - High Performance data structures and utility methods for Java

rsocket/rsocket-java - Java implementation of RSocket

pac4j/pac4j - Security engine for Java (authentication, authorization, multi frameworks): OAuth, CAS, SAML, OpenID Connect, LDAP, JWT...

oracle/visualvm - VisualVM is an All-in-One Java Troubleshooting Tool

zeromq/jeromq - Pure Java ZeroMQ

cymcsg/UltimateAndroid - UltimateAndroid is a rapid development framework for developing your apps

spotify/helios - Docker container orchestration platform

assertj/assertj-core - AssertJ is a library providing easy to use rich typed assertions

PojavLauncherTeam/PojavLauncher - A Minecraft: Java Edition Launcher for Android and iOS based on Boardwalk. This repository contains source code for Android platform.

google/jimfs - An in-memory file system for Java 7+

searchbox-io/Jest - Elasticsearch Java Rest Client.

sofastack/sofa-bolt - SOFABolt is a lightweight, easy to use and high performance remoting framework based on Netty.

Muddz/StyleableToast - [Moved to MavenCentral] An Android library that takes the standard toast to the next level with many styling options. Works on all Android versions.

soot-oss/soot - Soot - A Java optimization framework

hellokaton/30-seconds-of-java8 - 30 seconds to collect useful Java 8 snippet.

apilayer/restcountries - Get information about countries via a RESTful API

avjinder/Minimal-Todo - Material To-Do App

dooboolab/react-native-iap - react-native native module for In App Purchase.

Froussios/Intro-To-RxJava - An extensive tutorial on RxJava

egzosn/pay-java-parent - 第三方支付对接全能支付Java开发工具包.优雅的轻量级支付模块集成支付对接支付整合（微信,支付宝,银联,友店,富友,跨境支付paypal,payoneer(P卡派安盈)易极付）app,扫码,网页刷脸付刷卡付条码付转账服务商模式,微信分账,微信合单支付、支持多种支付类型多支付账户，支付与业务完全剥离，简单几行代码即可实现支付，简单快速完成支付模块的开发，可轻松嵌入到任何系统里 目前仅是一个开发工具包（即SDK），只提供简单Web实现，建议使用maven或gradle引用本项目即可使用本SDK提供的各种支付相关的功能

Ramotion/expanding-collection-android - ExpandingCollection is a material design card peek/pop controller. Android UI Library made by @Ramotion

jeecgboot/jeecg - JEECG是一款基于代码生成器的J2EE快速开发平台，开源界“小普元”超越传统商业企业级开发平台。引领新的开发模式(Online Coding模式(自定义表单) - > 代码生成器模式 - > 手工MERGE智能开发)， 可以帮助解决Java项目90%的重复工作，让开发更多关注业务逻辑。既能快速提高开发效率，帮助公司节省人力成本，同时又不失灵活性。具备：表单配置能力（无需编码）、移动配置能力、工作流配置能力、报表配置能力（支持移动端）、插件开发能力（可插拔）

hierynomus/sshj - ssh, scp and sftp for java

apache/avro - Apache Avro is a data serialization system.

huaban/jieba-analysis - 结巴分词(java版)

TNG/ArchUnit - A Java architecture test library, to specify and assert architecture rules in plain Java

spring-projects/spring-batch - Spring Batch is a framework for writing offline and batch applications using Spring and Java

AnySoftKeyboard/AnySoftKeyboard - Android (f/w 2.1+) on screen keyboard for multiple languages (chat https://gitter.im/AnySoftKeyboard)

Ramotion/android-ui-animation-components-and-libraries - Android UI libraries, components and animations by @ramotion

drewnoakes/metadata-extractor - Extracts Exif, IPTC, XMP, ICC and other metadata from image, video and audio files

speedment/speedment - Speedment is a Stream ORM Java Toolkit and Runtime

gitblit/gitblit - pure java git solution

apache/activemq - Mirror of Apache ActiveMQ

xerial/sqlite-jdbc - SQLite JDBC Driver

bytedeco/javacpp-presets - The missing Java distribution of native C++ libraries

ulisesbocchio/jasypt-spring-boot - Jasypt integration for Spring boot

apache/mahout - Mirror of Apache Mahout

sarxos/webcam-capture - The goal of this project is to allow integrated or USB-connected webcams to be accessed directly from Java. Using provided libraries users are able to read camera images and detect motion. Main project consist of several sub projects - the root one, which contains required classes, build-in webcam driver compatible with Windows, Linux and Mac OS, which can stream images as fast as your camera can serve them (up to 50 FPS). Main project can be used standalone, but user is able to replace build-in driver with different one - such as OpenIMAJ, GStreamer, V4L4j, JMF, LTI-CIVIL, FMJ, etc.

hamcrest/JavaHamcrest - Java (and original) version of Hamcrest

HelloWorld521/Java - java项目实战练习

Yalantis/StarWars.Android - This component implements transition animation to crumble view into tiny pieces.

DozerMapper/dozer - Dozer is a Java Bean to Java Bean mapper that recursively copies data from one object to another.

BruceEckel/OnJava8-Examples - Code Examples for the book "On Java 8"

moquette-io/moquette - Java MQTT lightweight broker

anitaa1990/Android-Cheat-sheet - Cheat Sheet for Android Interviews

ninjaframework/ninja - Ninja is a full stack web framework for Java. Rock solid, fast and super productive.

jOOQ/jOOL - jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functionality around sequential Streams. The JDK 8's main efforts (default methods, lambdas, and the Stream API) were focused around maintaining backwards compatibility and implementing a functional API for parallelism.

airsonic/airsonic - 📡 ☁️ 🎶Airsonic, a Free and Open Source community driven media server (fork of Subsonic and Libresonic)

liuyubobobo/Play-with-Data-Structures - Codes of my MOOC Course . Updated contents and practices are also included. 我在慕课网上的课程《Java语言玩转数据结构》示例代码。课程的更多更新内容及辅助练习也将逐步添加进这个代码仓。

boylegu/SpringBoot-vue - A example demo base SpringBooot with vueJS2.x + webpack2.x as Java full stack web practice

TakahikoKawasaki/nv-websocket-client - High-quality WebSocket client implementation in Java.

scalad/Note - 常规Java工具，算法，加密，数据库，面试题，源代码分析，解决方案

Ramotion/garland-view-android - ≡ GarlandView seamlessly transitions between multiple lists of content. Made by @Ramotion

Yalantis/FlipViewPager.Draco - This project aims to provide a working page flip implementation for usage in ListView.

dunwu/javacore - ☕ JavaCore 是对 Java 核心技术的经验总结。

torakiki/pdfsam - PDFsam, a desktop application to extract pages, split, merge, mix and rotate PDF files

Athou/commafeed - Google Reader inspired self-hosted RSS reader.

uber/piranha - A tool for refactoring code related to feature flag APIs

shyiko/mysql-binlog-connector-java - MySQL Binary Log connector

LogNet/grpc-spring-boot-starter - Spring Boot starter module for gRPC framework.

eclipse/eclipse-collections - Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.

konsoletyper/teavm - Compiler of Java bytecode to JavaScript

ysc/QuestionAnsweringSystem - QuestionAnsweringSystem是一个Java实现的人机问答系统，能够自动分析问题并给出候选答案。

airbnb/AirMapView - A view abstraction to provide a map user interface with various underlying map providers

syncthing/syncthing-android - Wrapper of syncthing for Android.

bonigarcia/webdrivermanager - Automated driver management and Docker builder for Selenium WebDriver

zhegexiaohuozi/SeimiCrawler - 一个简单、敏捷、分布式的支持SpringBoot的Java爬虫框架;An agile, distributed crawler framework.

Ramotion/circle-menu-android - ⭕️ CircleMenu is a simple, elegant UI menu with a circular layout and material design animations. Android UI library made by @Ramotion

qiujiayu/AutoLoadCache - AutoLoadCache 是基于AOP+Annotation等技术实现的高效的缓存管理解决方案，实现缓存与业务逻辑的解耦，并增加异步刷新及“拿来主义机制”，以适应高并发环境下的使用。

hekailiang/squirrel - squirrel-foundation is a State Machine library, which provided a lightweight, easy use, type safe and programmable state machine implementation for Java.

amaembo/streamex - Enhancing Java Stream API

qos-ch/slf4j - Simple Logging Facade for Java

OryxProject/oryx - Oryx 2: Lambda architecture on Apache Spark, Apache Kafka for real-time large scale machine learning

xiaojieonly/Ehviewer_CN_SXJ - ehviewer，用爱发电，快乐前行

julian-klode/dns66 - DNS-based Host Blocker (and lightweight ad blocker) for Android

kanwangzjm/funiture - 慕课网课程推荐 Java并发编程与高并发解决方案：http://coding.imooc.com/class/195.html Java开发企业级权限管理系统：http://coding.imooc.com/class/149.html github: https://github.com/kanwangzjm/funiture, spring项目，权限管理、系统监控、定时任务动态调整、qps限制、sql监控(邮件)、验证码服务、短链接服务、动态配置等

qdrzwd/VideoRecorder - android视频录制，模仿微视，支持按下录制、抬起暂停。进度条断点显示。

notnoop/java-apns - Java Apple Push Notification Service Provider

a466350665/smart-sso - springboot SSO 单点登录，OAuth2实现，支持App登录，支持分布式

redsolution/xabber-android - Open-source XMPP client for Android

connectbot/connectbot - ConnectBot is the first SSH client for Android.

buchen/portfolio - A simple tool to calculate the overall performance of an investment portfolio.

mabe02/lanterna - Java library for creating text-based GUIs

zq2599/blog_demos - CSDN博客专家程序员欣宸的github，这里有五百多篇原创文章的详细分类和汇总，以及对应的源码，内容涉及Java、Docker、Kubernetes、DevOPS等方面

find-sec-bugs/find-sec-bugs - The SpotBugs plugin for security audits of Java web applications and Android applications. (Also work with Kotlin, Groovy and Scala projects)

sanluan/PublicCMS - 现代化java cms，由天津黑核科技有限公司开发，轻松支撑千万数据、千万PV；支持静态化，服务器端包含; 目前已经拥有全球0.0002%的用户，语言支持中、繁、日、英；是一个已走向海外的成熟CMS产品

apache/servicecomb-java-chassis - ServiceComb Java Chassis is a Software Development Kit (SDK) for rapid development of microservices in Java, providing service registration, service discovery, dynamic routing, and service management features

yaphone/itchat4j - itchat4j -- 用Java扩展个人微信号的能力

spring-cloud/spring-cloud-config - External configuration (server and client) for Spring Cloud

HotswapProjects/HotswapAgent - Java unlimited redefinition of classes at runtime.

protostuff/protostuff - Java serialization library, proto compiler, code generator

mercyblitz/thinking-in-spring-boot-samples - 小马哥书籍《Spring Boot 编程思想》示例工程

apache/iotdb - Apache IoTDB

heinrichreimer/material-intro - A simple material design app intro with cool animations and a fluent API.

vaadin/framework - Vaadin 6, 7, 8 is a Java framework for modern Java web applications.

liuguangqiang/SwipeBack - SwipeBack is an android library that can finish a activity by using gesture.

CarpenterLee/JavaLambdaInternals - 深入理解Java函数式编程和Streams API

marytts/marytts - MARY TTS -- an open-source, multilingual text-to-speech synthesis system written in pure java

plutext/docx4j - JAXB-based Java library for Word docx, Powerpoint pptx, and Excel xlsx files

cbeust/testng - TestNG testing framework

doublechaintech/scm-biz-suite - 供应链中台系统基础版，集成零售管理, 电子商务, 供应链管理, 财务管理, 车队管理, 仓库管理, 人员管理, 产品管理, 订单管理, 会员管理, 连锁店管理, 加盟管理, 前端React/Ant Design, 后端Java Spring+自有开源框架，全面支持MySQL, PostgreSQL, 全面支持国产数据库南大通用GBase 8s,通过REST接口调用，前后端完全分离。

roncoo/spring-boot-demo - Spring Boot的基础教程，由浅入深，一步一步学习Spring Boot，最后学到的不单单是基础！Spring Cloud基础教程请看：https://github.com/roncoo/spring-cloud-demo

commonmark/commonmark-java - Java library for parsing and rendering CommonMark (Markdown)

cbeust/jcommander - Command line parsing framework for Java

vsch/flexmark-java - CommonMark/Markdown Java parser with source level AST. CommonMark 0.28, emulation of: pegdown, kramdown, markdown.pl, MultiMarkdown. With HTML to MD, MD to PDF, MD to DOCX conversion modules.

signalapp/libsignal-protocol-java - Signal Protocol library for Java/Android

EsotericSoftware/kryonet - TCP/UDP client/server library for Java, based on Kryo

alibaba/jvm-sandbox-repeater - A Java server-side recording and playback solution based on JVM-Sandbox

kilim/kilim - Lightweight threads for Java, with message passing, nio, http and scheduling support.

Yalantis/Taurus - A little more fun for the pull-to-refresh interaction.

stagemonitor/stagemonitor - an open source solution to application performance monitoring for java server applications

jphp-group/jphp - JPHP - an implementation of PHP on Java VM

eschao/android-PageFlip - 3D Style Page Flip on Android

acmenlt/dynamic-threadpool - 🔥 强大的动态线程池，附带监控报警功能（没有依赖中间件），完全遵循阿里巴巴编码规范。Powerful dynamic thread pool, does not rely on any middleware, with monitoring and alarm function.

flyingsaucerproject/flyingsaucer - XML/XHTML and CSS 2.1 renderer in pure Java

RichardWarburton/java-8-lambdas-exercises - Exercises and Answers for Java 8 Lambdas book

klinker24/talon-twitter-holo - [Deprecated] The Holo version of my popular Android Talon for Twitter app, 100% open-source

prometheus/client_java - Prometheus instrumentation library for JVM applications

FreeTymeKiyan/LeetCode-Sol-Res - Clean, Understandable Solutions and Resources for LeetCode Online Judge Algorithm Problems.

flutter/flutter-intellij - Flutter Plugin for IntelliJ

KikiLetGo/VirusBroadcast - A java virus broadcast simulation

xuxueli/xxl-sso - A distributed single-sign-on framework.（分布式单点登录框架XXL-SSO）

ZHENFENG13/ssm-demo - 🍌Spring+SpringMVC+Mybatis+easyUI实现简单的后台管理系统

ysc/word - Java分布式中文分词组件 - word分词

eclipse/paho.mqtt.java - Eclipse Paho Java MQTT client library. Paho is an Eclipse IoT project.

spotify/apollo - Java libraries for writing composable microservices

kairosdb/kairosdb - Fast scalable time series database

jberkel/sms-backup-plus - Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP

tlaplus/tlaplus - TLC is an explicit state model checker for specifications written in TLA+. The TLA+Toolbox is an IDE for TLA+.

threedr3am/learnjavabug - Java安全相关的漏洞和技术demo，原生Java、Fastjson、Jackson、Hessian2、XML反序列化漏洞利用和Spring、Dubbo、Shiro、CAS、Tomcat、RMI、Nexus等框架\中间件\功能的exploits以及Java Security Manager绕过、Dubbo-Hessian2安全加固等等实践代码。

apache/drill - Apache Drill is a distributed MPP query layer for self describing data

pf4j/pf4j - Plugin Framework for Java (PF4J)

JeffLi1993/java-core-learning-example - 关于Java核心技术学习积累的例子，是初学者及核心技术巩固的最佳实践。

pedroSG94/rtmp-rtsp-stream-client-java - Library to stream in rtmp and rtsp for Android. All code in Java

opentracing/opentracing-java - OpenTracing API for Java

bravoborja/ReadMoreTextView - A Custom TextView with trim text

googleapis/google-cloud-java - Google Cloud Client Library for Java

openhab/openhab-addons - Add-ons for openHAB

UweTrottmann/SeriesGuide - Track your favorite TV shows and movies on Android devices.

GoogleLLP/SuperMarket - 设计精良的网上商城系统，包括前端、后端、数据库、负载均衡、数据库缓存、分库分表、读写分离、全文检索、消息队列等，使用SpringCloud框架，基于Java开发。该项目可部署到服务器上，不断完善中……

indy256/codelibrary - 💎Collection of algorithms and data structures

coderbruis/JavaSourceCodeLearning - Java流行框架源码分析：Spring源码、SpringBoot源码、SpringAOP源码、SpringSecurity源码、SpringSecurity OAuth2源码、JDK源码、Netty源码

bcgit/bc-java - Bouncy Castle Java Distribution (Mirror)

casbin/jcasbin - An authorization library that supports access control models like ACL, RBAC, ABAC in Java

jdbi/jdbi - jdbi is designed to provide convenient tabular data access in Java; including templated SQL, parameterized and strongly typed queries, and Streams integration

aNNiMON/Lightweight-Stream-API - Stream API from Java 8 rewritten on iterators for Java 7 and below

Yalantis/ToDoList - Micro-Transitions for Smooth Android To-Do List Animations

javahongxi/whatsmars - Java生态研究(Spring Boot + Redis + Dubbo + RocketMQ + Elasticsearch)🔥🔥🔥🔥🔥

p6spy/p6spy - P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to the application.

apache/ambari - Mirror of Apache Ambari

rapidoid/rapidoid - Rapidoid - Extremely Fast, Simple and Powerful Java Web Framework and HTTP Server!

vran-dev/PrettyZoo - 😉 Pretty nice Zookeeper GUI, Support Win / Mac / Linux Platform

majidgolshadi/Android-Download-Manager-Pro - Android/Java download manager library help you to download files in parallel mechanism in some chunks.

shekhargulati/java8-the-missing-tutorial - Java 8 for all of us

jayZheng87/Thusy - Java 工具类库；在全面集成 Hutool 上进行工具类二次收集的一个类库

apache/pdfbox - Mirror of Apache PDFBox

j256/ormlite-android - ORMLite Android functionality used in conjunction with ormlite-core

Smith-Cruise/Spring-Boot-Shiro - Shiro基于SpringBoot +JWT搭建简单的restful服务

uber-common/jvm-profiler - JVM Profiler Sending Metrics to Kafka, Console Output or Custom Reporter

JorenSix/TarsosDSP - A Real-Time Audio Processing Framework in Java

xianrendzw/EasyReport - A simple and easy to use Web Report System for java.EasyReport是一个简单易用的Web报表工具(支持Hadoop,HBase及各种关系型数据库),它的主要功能是把SQL语句查询出的行列结构转换成HTML表格(Table)，并支持表格的跨行(RowSpan)与跨列(ColSpan)。同时它还支持报表Excel导出、图表显示及固定表头与左边列的功能。

nayuki/Project-Euler-solutions - Runnable code for solving Project Euler problems in Java, Python, Mathematica, Haskell.

Netflix/genie - Distributed Big Data Orchestration Service

asLody/legend - A framework for hook java methods.

fabric8io/docker-maven-plugin - Maven plugin for running and creating Docker images

GlowstoneMC/Glowstone - A fast, customizable and compatible open source server for Minecraft: Java Edition

spring-cloud/spring-cloud-sleuth - Distributed tracing for spring cloud

asciidocfx/AsciidocFX - Asciidoc Editor and Toolchain written with JavaFX 16 (Build PDF, Epub, Mobi and HTML books, documents and slides)

springdoc/springdoc-openapi - Library for OpenAPI 3 with spring-boot

MorphiaOrg/morphia - MongoDB object-document mapper in Java based on https://github.com/mongodb/mongo-java-driver

cachecats/coderiver - 致力于打造全平台全栈精品开源项目，计划做成包含 pc 端（Vue、React）、移动 H5（Vue、React）、ReactNative、Flutter、Android 原生、微信小程序、Angular、Node、java 后端的全平台型全栈项目，欢迎关注。

UniversalMediaServer/UniversalMediaServer - A DLNA, UPnP and HTTP(S) Media Server.

SundeepK/CompactCalendarView - An android library which provides a compact calendar view much like the one used in google calenders.

googlemaps/google-maps-services-java - Java client library for Google Maps API Web Services

youseries/ureport - UReport2 is a high-performance pure Java report engine based on Spring architecture, where complex Chinese-style statements and reports can be prepared by iterating over cells.

jdeferred/jdeferred - Java Deferred/Promise library similar to JQuery.

dcevm/dcevm - Dynamic Code Evolution VM for Java 7/8

Joolun/JooLun-wx - JooLun微信商城，Java + SpringBoot + Maven + Swagger + Mybatis Plus + Redis + Vue + elementUI，微信公众号开发、小程序商城、微信支付、订单管理；商业版还有微服务、多租户Sass、Uniapp商城、小程序直播、多规格SKU、拼团、砍价、商户管理、 秒杀、优惠券、积分、多店铺、商城拖拽装修、服务商收款等功能

functionaljava/functionaljava - Functional programming in Java

mendhak/gpslogger - 📡 Lightweight GPS Logging Application For Android.

binarywang/weixin-java-mp-demo - 基于Spring Boot 和 WxJava 实现的微信公众号Java后端Demo，支持多公众号

wangjiegulu/WheelView - Android滚动选择控件

crossbario/autobahn-java - WebSocket & WAMP in Java for Android and Java 8

jchambers/pushy - A Java library for sending APNs (iOS/macOS/Safari) push notifications

java-json-tools/json-schema-validator - A JSON Schema validation implementation in pure Java, which aims for correctness and performance, in that order

qiujuer/ImageBlurring - Android blurring image(bitmap) by java and jni.

happyfish100/fastdfs-client-java - FastDFS java client SDK

apache/bookkeeper - Apache Bookkeeper

4thline/cling - UPnP/DLNA library for Java and Android

selenide/selenide - Concise UI Tests with Java!

npgall/cqengine - Ultra-fast SQL-like queries on Java collections

Yalantis/pull-to-make-soup - Custom animated pull-to-refresh that can be easily added to RecyclerView

apache/parquet-mr - Apache Parquet

vladmihalcea/hibernate-types - The Hibernate Types library gives you extra types that are not supported by the Hibernate ORM core.

mmin18/FlexLayout - A powerful Android layout view that use java expression in layout params to describe relative positions.

anvil-ui/anvil - Minimal UI library for Android inspired by React

SeldonIO/seldon-server - Machine Learning Platform and Recommendation Engine built on Kubernetes

fengjiachun/Jupiter - Jupiter是一款性能非常不错的, 轻量级的分布式服务框架

mercyblitz/segmentfault-lessons - Segment Fault 在线讲堂 代码工程

waylau/netty-4-user-guide-demos - Netty demos. （Netty 案例大全）

RuedigerMoeller/fast-serialization - FST: fast java serialization drop in-replacement

yahoo/mysql_perf_analyzer - MySQL performance monitoring and analysis.

jooby-project/jooby - The modular web framework for Java and Kotlin

spotify/docker-client - INACTIVE: A simple docker client for the JVM

netgloo/spring-boot-samples - Spring Boot samples by Netgloo

iqiyi/Qigsaw - 🔥🔥Qigsaw ['tʃɪɡsɔ] is a dynamic modularization library which is based on Android App Bundles(Do not need Google Play Service). It supports dynamic delivery for split APKs without reinstalling the base one.

galenframework/galen - Layout and functional testing framework for websites

sleuthkit/autopsy - Autopsy® is a digital forensics platform and graphical interface to The Sleuth Kit® and other digital forensics tools. It can be used by law enforcement, military, and corporate examiners to investigate what happened on a computer. You can even use it to recover photos from your camera's memory card.

erupts/erupt - 🚀 纯 Java 注解，单个类文件，快速开发 Admin 管理后台。不生成任何代码、零前端代码、零 CURD、自动建表、注解式API、自定义服务逻辑，支持所有主流数据库，支持自定义页面，支持多数据源，提供二十几类业务组件，十几种展示形式，支持逻辑删除，动态定时任务，前端后端分离等。核心技术：Spring Boot、JPA、Reflect、TypeScript、NG-ZORRO等。 开源不易，记得右上角点个star鼓励作者~

JonathanLink/PDFLayoutTextStripper - Converts a pdf file into a text file while keeping the layout of the original pdf. Useful to extract the content from a table in a pdf file for instance. This is a subclass of PDFTextStripper class (from the Apache PDFBox library).

hapifhir/hapi-fhir - 🔥 HAPI FHIR - Java API for HL7 FHIR Clients and Servers

youseries/urule - URULE是一款基于RETE算法的纯Java规则引擎，提供规则集、决策表、决策树、评分卡，规则流等各种规则表现工具及基于网页的可视化设计器，可快速开发出各种复杂业务规则。

yzcheng90/X-SpringBoot - X-SpringBoot是一个轻量级的Java快速开发平台，能快速开发项目并交付【接私活利器】

spring-projects/spring-data-redis - Provides support to increase developer productivity in Java when using Redis, a key-value store. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

tobato/FastDFS_Client - Java Client for FastDFS

square/haha - DEPRECATED Java library to automate the analysis of Android heap dumps.

centic9/jgit-cookbook - Provides examples and code snippets for the JGit Java Git implementation

GoogleCloudPlatform/java-docs-samples - Java and Kotlin Code samples used on cloud.google.com

JoyChou93/java-sec-code - Java web common vulnerabilities and security code which is base on springboot and spring security

aimacode/aima-java - Java implementation of algorithms from Russell And Norvig's "Artificial Intelligence - A Modern Approach"

OpenHFT/Java-Thread-Affinity - Bind a java thread to a given core

tomoya92/pybbs - 更实用的Java开发的社区(论坛)，Better use of Java development community (forum)

haraldk/TwelveMonkeys - TwelveMonkeys ImageIO: Additional plug-ins and extensions for Java's ImageIO

lilishop/lilishop - 电商商城 开源商城 java电商商城系统 多用户商城

Docile-Alligator/Infinity-For-Reddit - A Reddit client for Android

json-iterator/java - jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go

i2p/i2p.i2p - I2P is an anonymizing network, offering a simple layer that identity-sensitive applications can use to securely communicate. All data is wrapped with several layers of encryption, and the network is both distributed and dynamic, with no trusted parties.

Haleydu/Cimoc - 漫画阅读器

shekhargulati/strman-java - A Java 8 string manipulation library.

88250/symphony - 🎶 一款用 Java 实现的现代化社区（论坛/问答/BBS/社交网络/博客）系统平台。A modern community (forum/Q&A/BBS/SNS/blog) system platform implemented in Java. https://ld246.com

winder/Universal-G-Code-Sender - A cross-platform G-Code sender for GRBL, Smoothieware, TinyG and G2core.

bootique/bootique - Bootique is a minimally opinionated platform for modern runnable Java apps.

0Chencc/CTFCrackTools - China's first CTFTools framework.中国国内首个CTF工具框架,旨在帮助CTFer快速攻克难关

dain/leveldb - Port of LevelDB to Java

spring-projects/spring-data-mongodb - Provide support to increase developer productivity in Java when using MongoDB. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

CoderLeixiaoshuai/java-eight-part - 『Java八股文』Java面试套路，Java进阶学习，打破内卷拿大厂Offer，升职加薪！

greenrobot/essentials - General purpose utilities and hash functions for Android and Java (aka java-common)

albertlatacz/java-repl - Read Eval Print Loop for Java

NLPchina/nlp-lang - 这个项目是一个基本包.封装了大多数nlp项目中常用工具

komoot/photon - an open source geocoder for openstreetmap data

kenglxn/QRGen - a simple QRCode generation api for java built on top ZXING

google/flogger - A Fluent Logging API for Java

hcoles/pitest - State of the art mutation testing system for the JVM

graphhopper/jsprit - jsprit is a java based, open source toolkit for solving rich vehicle routing problems

mitreid-connect/OpenID-Connect-Java-Spring-Server - An OpenID Connect reference implementation in Java on the Spring platform.

vladimir-bukhtoyarov/bucket4j - Java rate limiting library based on token/leaky-bucket algorithm.

vigna/fastutil - fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.

JackJiang2011/beautyeye - BeautyEye is a Java Swing cross-platform look and feel.

OysterQAQ/Pixiv-Illustration-Collection-Backend - pixivic Backend

danfickle/openhtmltopdf - An HTML to PDF library for the JVM. Based on Flying Saucer and Apache PDF-BOX 2. With SVG image support. Now also with accessible PDF support (WCAG, Section 508, PDF/UA)!

apache/poi - Mirror of Apache POI

gravitee-io/gravitee-api-management - Gravitee.io - OpenSource API Management

Discord4J/Discord4J - Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API.

aws/aws-sdk-java-v2 - The official AWS SDK for Java - Version 2

itext/itextpdf - [DEPRECATED] Core Java Library + PDF/A, xtra and XML Worker. Only security fixes will be added — please use iText 7

tabulapdf/tabula-java - Extract tables from PDF files

jwpttcg66/NettyGameServer - 使用netty4.X实现的手机游戏分布式服务器,支持tcp,udp,http,websocket链接，采用protobuf自定义协议栈进行网络通信,支持rpc远程调用,使用mybatis3支持db存储分库分表，支持异步mysql存储，db保存时同步更新reids缓存。 使用ExcelToCode工程，将excel数据生成java类和json数据字典，DictService直接读取json，减少数据字典部分代码。使用game-executor工程，增加游戏内的异步事件全局服务, 支持事件sharding,均衡的异步执行事件逻辑

Pi4J/pi4j-v1 - Java I/O library for Raspberry Pi (GPIO, I2C, SPI, UART)

mixi-inc/AndroidTraining - Training course repository for android app development

linisme/Cipher.so - A simple way to encrypt your secure data like passwords into a native .so library.

apache/maven-mvnd - Apache Maven Daemon

blipinsk/RecyclerViewHeader - [DEPRECATED] Super fast and easy way to create header for Android RecyclerView

cmusphinx/sphinx4 - Pure Java speech recognition library

apache/tika - The Apache Tika toolkit detects and extracts metadata and text from over a thousand different file types (such as PPT, XLS, and PDF).

jingle1267/android-utils - It contains most of the Android utility classes.

mattia-battiston/clean-architecture-example - Clean Architecture Example (Java): Example of what clean architecture would look like (in Java)

Instagram/ig-json-parser - Fast JSON parser for java projects

magefree/mage - Magic Another Game Engine

FlowCI/flow-core-x - Powerful and user-friendly CI / CD server with high availability, parallel build, agent scaling

kalessil/phpinspectionsea - A Static Code Analyzer for PHP (a PhpStorm/Idea Plugin)

sirthias/pegdown - A pure-Java Markdown processor based on a parboiled PEG parser supporting a number of extensions

survivingwithandroid/Surviving-with-android - Source code related to the posts in the blog

EsotericSoftware/reflectasm - High performance Java reflection

ta4j/ta4j - A Java library for technical analysis.

hawtio/hawtio - Hawtio web console helps you manage your JVM stuff and stay cool!

jknack/handlebars.java - Logic-less and semantic Mustache templates with Java

ebean-orm/ebean - Ebean ORM

INRIA/spoon - Spoon is a metaprogramming library to analyze and transform Java source code. 🥄 is made with ❤️, 🍻 and ✨. It parses source files to build a well-designed AST with powerful analysis and transformation API.

mpetazzoni/ttorrent - BitTorrent Java library with tracker and download client

Dreampie/Resty - The minimalist framework of RESTful(server and client) - Resty

openjdk/loom - https://openjdk.java.net/projects/loom/

aliyun/aliyun-openapi-java-sdk - Alibaba Cloud SDK for Java

RaiMan/SikuliX1 - SikuliX version 2.0.0+ (2019+)

864381832/xJavaFxTool - 基于JavaFx搭建的实用小工具集合，方便开发过程中的代码编写与调试，想学习javaFx的同学可以参考参考。其中包括文件复制、Cron表达式生成器、编码转换、加密解密、Time转换、路径转换、二维码生成工具、身份证生成器、正则表达式生成工具、网址缩短、转义字符、字符串转换、Mq调试工具、Http调试工具、json格式化编辑工具、图标生成工具、Redis连接工具、网页源码下载工具、切换Hosts工具、Ftp服务器、Cmd调试工具、Ftp/Ftps/Sftp客户端调试工具、Pdf转换工具、文件列表生成器、图片压缩工具、图片转码工具、Kafka调试工具、Email群发工具、颜色代码转换工具、短信群发工具、脚本引擎调试、文件重命名、Json转换、语音转换、Socket调试、图片解析、微信小程序反编译、Zookeeper操作、Excel拆分合并、文件夹监控、文件编码检测、传输、端口扫描、久坐提醒、随机数生成、剪贴板历史、文件搜索、mp3转换、印章生成等工具

iTXTech/Daedalus - No root required Android DNS modifier and Hosts/DNSMasq resolver.

BuildCraft/BuildCraft - BuildCraft

EssentialsX/Essentials - The essential plugin suite for Minecraft servers.

spring-projects/spring-data-book - Spring Data - The Definitive Guide - Modern Data Access for Enterprise Java Developers

cincheo/jsweet - A Java to JavaScript transpiler.

LeonardoZ/java-concurrency-patterns - Concurrency Patterns and features found in Java, through multithreaded programming. Threads, Locks, Atomics and more.

msgpack/msgpack-java - MessagePack serializer implementation for Java / msgpack.org[Java]

hellokaton/learn-java8 - 💖《跟上 Java 8》视频课程源码

atduskgreg/opencv-processing - OpenCV for Processing. A creative coding computer vision library based on the official OpenCV Java API

spring-projects/spring-integration - Spring Integration provides an extension of the Spring programming model to support the well-known Enterprise Integration Patterns (EIP)

datastax/java-driver - DataStax Java Driver for Apache Cassandra

locationtech/jts - The JTS Topology Suite is a Java library for creating and manipulating vector geometry.

geotools/geotools - Official GeoTools repository

cuba-platform/cuba - CUBA Platform is a high level framework for enterprise applications development

flipkart-incubator/proteus - Proteus : A JSON based LayoutInflater for Android

srikanth-lingala/zip4j - A Java library for zip files and streams

spring-projects/spring-statemachine - Spring Statemachine is a framework for application developers to use state machine concepts with Spring.

electronicarts/ea-async - EA Async implements async-await methods in the JVM.

ivan-vasilev/neuralnetworks - java deep learning algorithms and deep neural networks with gpu acceleration

j-easy/easy-random - The simple, stupid random Java beans/records generator

knowm/XChart - XChart is a light-weight Java library for plotting data.

kwhat/jnativehook - Global keyboard and mouse listeners for Java.

peter-lawrey/Java-Chronicle - Java Indexed Record Chronicle

googleapis/google-http-java-client - Google HTTP Client Library for Java

aol/cyclops - An advanced, but easy to use, platform for writing functional applications in Java 8.

menacher/java-game-server - Jetserver is a high speed nio socket based multiplayer java game server written using Netty and Mike Rettig's Jetlang.It is specifically tuned for network based multiplayer games and supports TCP and UDP network protocols.

fusesource/mqtt-client - A Java MQTT Client

psi-probe/psi-probe - Advanced manager and monitor for Apache Tomcat, forked from Lambda Probe

sirthias/parboiled - Elegant parsing in Java and Scala - lightweight, easy-to-use, powerful.

qiurunze123/threadandjuc - ⭐⭐⭐⭐高并发-高可靠-高性能three-high-import导入系统-高并发多线程进阶

gaopu/Java - 一些用Java写的小东西（没什么用，大家不要star了😄）

ocpsoft/prettytime - Social Style Date and Time Formatting for Java

tang-jie/NettyRPC - NettyRPC is high performance java rpc server base on Netty,using kryo,hessian,protostuff support message serialization.

manifold-systems/manifold - Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.

wupeixuan/JDKSourceCode1.8 - Jdk1.8源码解析

TEAMMATES/teammates - This is the project website for the TEAMMATES feedback management tool for education

Guardsquare/proguard - ProGuard, Java optimizer and obfuscator

varunest/SparkButton - Android library to create buttons with Twitter's heart like animation.

opensourceBIM/BIMserver - The open source BIMserver platform

vmihalachi/turbo-editor - Simple and powerful File Editor for Android. All is licensed under the GPLv3 license.

rampatra/jbot - Make Slack and Facebook Bots in Java.

mzheravin/exchange-core - Ultra-fast matching engine written in Java based on LMAX Disruptor, Eclipse Collections, Real Logic Agrona, OpenHFT, LZ4 Java, and Adaptive Radix Trees.

bazaarvoice/jolt - JSON to JSON transformation library written in Java.

braisdom/ObjectiveSql - Writing SQL using Java syntax

Shashank02051997/FancyToast-Android - Make your native android Toasts Fancy. A library that takes the standard Android toast to the next level with a variety of styling options. Style your toast from code.

awslabs/aws-serverless-java-container - A Java wrapper to run Spring, Jersey, Spark, and other apps inside AWS Lambda.

siriscac/RippleView - View that imitates Ripple Effect on click which was introduced in Android L (for Android 2.3+)

google-ar/sceneform-android-sdk - Sceneform SDK for Android

schemacrawler/SchemaCrawler - Free database schema discovery and comprehension tool

codenameone/CodenameOne - Cross-platform framework for building truly native mobile apps with Java or Kotlin. Write Once Run Anywhere support for iOS, Android, Desktop & Web.

puniverse/capsule - Dead-Simple Packaging and Deployment for JVM Apps

sofastack/sofa-ark - SOFAArk is a light-weight，java based classloader isolation framework.

apache/cloudstack - Apache Cloudstack

square/javapoet - A Java API for generating .java source files.

grpc/grpc-java - The Java gRPC implementation. HTTP/2 based RPC

pxb1988/dex2jar - Tools to work with android .dex and java .class files

perwendel/spark - A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

jhy/jsoup - jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

apereo/cas - Apereo CAS - Enterprise Single Sign On for all earthlings and beyond.

DuGuQiuBai/Java - 27天成为Java大神

doocs/leetcode - 😏 LeetCode solutions in any programming language | 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解

TooTallNate/Java-WebSocket - A barebones WebSocket client and server implementation written in 100% Java.

InterestingLab/seatunnel - Production Ready Data Integration Product, documentation：

jhipster/jhipster-sample-app - This is a sample application created with JHipster

mitre/HTTP-Proxy-Servlet - Smiley's HTTP Proxy implemented as a Java servlet

codinguser/gnucash-android - Gnucash for Android mobile companion application.

SpongePowered/SpongeForge - A Forge mod that implements SpongeAPI

HanSolo/tilesfx - A JavaFX library containing tiles that can be used for dashboards.

florent37/FiftyShadesOf - An elegant context-care loading placeholder for Android

ajanata/PretendYoureXyzzy - A web clone of the card game Cards Against Humanity.

QuadFlask/colorpicker - 🍭color picker for android

itext/itext7 - iText 7 for Java represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enhance PDF documents, iText 7 can be a boon to nearly every workflow.

MyCollab/mycollab - An open source, free, high performance, stable and secure Java Application Business Platform of Project Management and Document

Java-aid/Hackerrank-Solutions - hackerrank solutions github | hackerrank all solutions | hackerrank solutions for java | hackerrank video tutorial | hackerrank cracking the coding interview solutions | hackerrank data structures | hackerrank solutions algorithms | hackerrank challenge | hackerrank coding challenge | hackerrank algorithms solutions github| hackerrank problem solving | hackerrank programs solutions | JAVAAID |all hackerrank solutions | Coding Interview Preparation

berndruecker/flowing-retail - Sample application demonstrating an order fulfillment system decomposed into multiple independant components (e.g. microservices). Showing concrete implementation alternatives using e.g. Java, Spring Boot, Apache Kafka, Camunda, Zeebe, ...

apache/struts - Mirror of Apache Struts

patric-r/jvmtop - Java monitoring for the command-line, profiler included

THEONE10211024/RxJavaSamples - 收集了RxJava常见的使用场景，例子简洁、经典、易懂...

tmobile/pacbot - PacBot (Policy as Code Bot)

kangjianwei/LearningJDK - JDK源码阅读笔记

DreamCats/java-notes - 自己的学习笔记。包含：个人秋招经历、🐂客面经问题按照频率总结、Java一系列知识、数据库、分布式、微服务、前端、技术面试、每日文章等(持续更新)

stephanenicolas/toothpick - A scope tree based Dependency Injection (DI) library for Java / Kotlin / Android.

rkalla/imgscalr - Simple Java image-scaling library implementing Chris Campbell's incremental scaling algorithm as well as Java2D's "best-practices" image-scaling techniques.

zalando/intellij-swagger - A plugin to help you easily edit Swagger and OpenAPI specification files inside IntelliJ IDEA

linkedin/parseq - Asynchronous Java made easier

leibnitz27/cfr - This is the public repository for the CFR Java decompiler

googleapis/google-api-java-client - Google APIs Client Library for Java

klinker24/talon-for-twitter-android - The most powerful and beautiful Twitter client available.

devnied/EMV-NFC-Paycard-Enrollment - A Java library used to read and extract data from NFC EMV credit cards (Android/PCSC).

Azure/azure-sdk-for-java - This repository is for active development of the Azure SDK for Java. For consumers of the SDK we recommend visiting our public developer docs at https://docs.microsoft.com/java/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-java.

chenssy89/jutils - jutils，通用的Java工具类，主要包括基础工具类（时间、正则表达式、字符串、随机数等等），excel解析生成、word解析生成、文件操作、图片操作、敏感字、加解密等等。

microsoft/gctoolkit - Tool for parsing GC logs

SpongePowered/SpongeAPI - A Minecraft plugin API

nguyenq/tess4j - Java JNA wrapper for Tesseract OCR API

zaiyunduan123/Java-Summarize - 📚Java核心知识点整理（包括Java基础、JVM、数据库、计算机网络、算法、操作系统、设计模式、系统设计、框架原理）

JaceyRx/Examination_System - 一个简单的教务查询系统（主要技术SpringMVC + Spring + Mybatis + Shiro + Bootstrap）

stealthcopter/AndroidNetworkTools - Set of useful android network tools

magese/ik-analyzer-solr - ik-analyzer for solr 7.x-8.x

apache/opennlp - Mirror of Apache OpenNLP

datumbox/datumbox-framework - Datumbox is an open-source Machine Learning framework written in Java which allows the rapid development of Machine Learning and Statistical applications.

lets-mica/mica - Spring Cloud 微服务开发核心工具集。工具类、验证码、http、redis、ip2region、xss 等，开箱即用。 🔝 🔝 记得右上角点个star 关注更新！

Grover-c13/PokeGOAPI-Java - Pokemon Go API

bramp/ffmpeg-cli-wrapper - Java wrapper around the FFmpeg command line tool

xujeff/tianti - java轻量级的CMS解决方案-天梯。天梯是一个用java相关技术搭建的后台CMS解决方案，用户可以结合自身业务进行相应扩展，同时提供了针对dao、service等的代码生成工具。技术选型：Spring Data JPA、Hibernate、Shiro、 Spring MVC、Layer、Mysql等。

openmrs/openmrs-core - OpenMRS API and web application code

diwi/PixelFlow - A Processing/Java library for high performance GPU-Computing (GLSL). Fluid Simulation + SoftBody Dynamics + Optical Flow + Rendering + Image Processing + Particle Systems + Physics +...

pengwei1024/LogUtils - More convenient and easy to use android Log manager

jiang111/RxJavaApp - 学习RxJava操作符的APP,新增RxJava2.x介绍

MSPaintIDE/MSPaintIDE - Programming in MS Paint

yahoo/egads - A Java package to automatically detect anomalies in large scale time-series data

alibaba/taokeeper - ZooKeeper-Monitor, a monitor for zookeeper in java. Download https://github.com/alibaba/taokeeper/downloads

bin392328206/six-finger - 📓从Java基础、JavaWeb基础到常用的框架再到面试题、微服务、分布式、大数据都有完整的教程，几乎涵盖了Java必备的知识点

influxdata/influxdb-java - Java client for InfluxDB

zalando/logbook - An extensible Java library for HTTP request and response logging

rabbitmq/rabbitmq-java-client - RabbitMQ Java client

eclipse/eclipse.jdt.ls - Java language server

abel533/ECharts - 这是一个针对ECharts2.x版本的Java类库，实现了所有ECharts中的Json结构对应的Java对象，并且可以很方便的创建Option,Series等

SilenceIM/Silence - PROJECT MOVED: https://git.silence.dev/Silence/Silence-Android/ (GitHub is just a mirror.)

UCodeUStory/DataStructure - 💋💋数据结构、算法总结、学习算法的时间复杂度、空间复杂度、分析算法特点以及应用、Java面试难题、Android面试难题

hsiafan/apk-parser - Apk parser for java

aliyun/aliyun-oss-java-sdk - Aliyun OSS SDK for Java

Netflix/astyanax - Cassandra Java Client

pgjdbc/pgjdbc - Postgresql JDBC Driver

journaldev/journaldev - JournalDev Projects

Netflix/hollow - Hollow is a java library and toolset for disseminating in-memory datasets from a single producer to many consumers for high performance read-only access.

ff4j/ff4j - Feature Flags for Java made easy

trekawek/coffee-gb - Gameboy emulator in Java 8.

apache/incubator-sedona - A cluster computing framework for processing large-scale geospatial data

dadoonet/fscrawler - Elasticsearch File System Crawler (FS Crawler)

open-telemetry/opentelemetry-java - OpenTelemetry Java SDK

mpatric/mp3agic - A java library for reading mp3 files and reading / manipulating the ID3 tags (ID3v1 and ID3v2.2 through ID3v2.4).

metasfresh/metasfresh - We do Open Source ERP - Fast, Flexible & Free Software to scale your Business.

DragonetMC/DragonProxy - 🐲 A proxy to allow Minecraft: Bedrock clients to connect to Minecraft: Java Edition servers.

mgarin/weblaf - WebLaF is a fully open-source Look & Feel and component library written in pure Java for cross-platform desktop Swing applications.

wfh45678/radar - 实时风控引擎(Risk Engine)，自定义规则引擎（Rule Script），完美支持中文，适用于反欺诈(Anti-fraud)应用场景，开箱即用！！！移动互联网时代的风险管理利器，你 Get 到了吗？

18601949127/DiDiCallCar - 这是我自己做的一个类似滴滴打车的Android出行项目，主要针对滴滴等出行平台一直饱受质疑的“人车不符”问题，以及当前越发火热的或计划和出海战略，给出行项目增加了下面几个功能： 1. RFID识别验证功能：在司机证件或者车内识别硬件嵌入RFID识别芯片，乘客使用手机读取到芯片信息，并且通过网络发送到出行平台数据库进行验证（我用JNI加了一个C语言的MD5加密算法对识别到的信息进行了加密）。如果不是合规的“人”或“车”，则不能完成订单并向平台或监管单位汇报当前位置。（为了方便读者测试，可以使用手机读取任何一个加密或非加密RFID芯片，比如银行卡、公交卡等，我在代码中的验证前阶段把芯片信息都换成我自己的司机信息，确保读者测试时可以收到服务器的回复） 2. 海外版功能：点击切换当前语言。 3. 司机证件号码识别功能：读取司机证件上的证件号码，也可以用来与出行平台数据库的接单司机信息进行。I complete this whole project on my own . Including Android application programming，web server ( Apache + PHP + MySQL), and UI. 1．Map route planing。You can use mobile phone choose pick up & destination address，application provide address name hint and draw optimized route for user , then call car for you. 2．RFID authentication function：User can use application to scan driver license or other RFID hardware, then use NDK MD5 algorithm encrypt RFID number, and send it to Web Server Database, check with driver information and authenticate ID number , if ID number coherent with driver info , send back driver information to User and continue call car order . record user location and alert if ID not coherent. 3．Driver License Number Recognition : Application can recognize driver license digit number ,and also can send to web server for authentication & feed back result to user.

Minestom/Minestom - 1.17.1 Lightweight and multi-threaded Minecraft server

bufferapp/BufferTextInputLayout - A simple customised version of the TextInputLayout from the Android Design Support Library ⌨️

AOF-Dev/MCinaBox - MCinaBox - A Minecraft: Java Edition Launcher for Android. An Encapsulation of CosineMath's BoatApp.

spotify/mobius - A functional reactive framework for managing state evolution and side-effects.

oracle/tribuo - Tribuo - A Java machine learning library

DWorkS/VolleyPlus - 🏐 Volley library : make everything faster . Its an improvements for Volley by Google for Android https://android.googlesource.com/platform/frameworks/volley

alibaba/Alink - Alink is the Machine Learning algorithm platform based on Flink, developed by the PAI team of Alibaba computing platform.

dboissier/mongo4idea - MongoDB integration in Intellij

bravoborja/FocusResize - A custom animation with scroll listener to recycler views

mahmoudparsian/data-algorithms-book - MapReduce, Spark, Java, and Scala for Data Algorithms Book

tony19/logback-android - 📄The reliable, generic, fast and flexible logging framework for Android

awslabs/aws-sdk-android-samples - This repository has samples that demonstrate various aspects of the AWS SDK for Android, you can get the SDK source on Github https://github.com/aws-amplify/aws-sdk-android/

FXMisc/RichTextFX - Rich-text area for JavaFX

good-life/PushTalk - 推聊是一个基于极光推送 (JPush) 的手机聊天系统。支持群聊与点对点聊天。当前包括 Android客户端、iOS客户端与 Java服务器端。3分钟就可以整套系统跑起来。

FuZhucheng/SSM - J2EE项目系列（四）–SSM框架构建积分系统和基本商品检索系统（Spring+SpringMVC+MyBatis+Lucene+Redis+MAVEN）

borball/weixin-sdk - 微信公众平台(订阅号、服务号、企业号、小程序)、微信开放平台和微信支付 Java SDK

jbake-org/jbake - Java based open source static site/blog generator for developers & designers.

sukritishah15/DS-Algo-Point - This repository contains codes for various data structures and algorithms in C, C++, Java, Python, C#, Go, JavaScript, PHP, Kotlin and Scala

neoremind/fluent-validator - A Java validation framework leveraging fluent interface style and JSR 303 specification

jline/jline3 - JLine is a Java library for handling console input.

Gottox/socket.io-java-client - Socket.IO Client Implementation in Java

murraco/spring-boot-jwt - JWT auth service using Spring Boot, Spring Security and MySQL

libgdx/gdx-ai - Artificial Intelligence framework for games based on libGDX or not. Features: Steering Behaviors, Formation Motion, Pathfinding, Behavior Trees and Finite State Machines

playgameservices/android-basic-samples - Google Play game services - Android samples

appium/java-client - Java language binding for writing Appium Tests, conforms to Mobile JSON Wire & W3C Webdriver Protocol

superhj1987/pragmatic-java-engineer - Java工程师修炼之道 - 梳理Java知识体系，沓实架构基础

the3deers/android-3D-model-viewer - Android OpenGL 2.0 application to view 3D models. Published on Play Store

AppliedEnergistics/Applied-Energistics-2 - A Minecraft Mod about Matter, Energy and using them to conquer the world..

kaikramer/keystore-explorer - KeyStore Explorer is a free GUI replacement for the Java command-line utilities keytool and jarsigner.

hazelcast/hazelcast-jet - Distributed Stream and Batch Processing

RyanFehr/HackerRank - HackerRank solutions in Java/JS/Python/C++/C#

leventov/Koloboke - Java Collections till the last breadcrumb of memory and performance

aol/micro-server - Microserver is a Java 8 native, zero configuration, standards based, battle hardened library to run Java Rest Microservices via a standard Java main class. Supporting pure Microservice or Micro-monolith styles.

JetBrains/xodus - Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.

zxh0/classpy - GUI tool for investigating Java class files

lenskit/lenskit - LensKit recommender toolkit.

apache/parquet-format - Apache Parquet

twitter/hbc - A Java HTTP client for consuming Twitter's realtime Streaming API

WeBankFinTech/Linkis - Linkis helps easily connect to various back-end computation/storage engines(Spark, Python, TiDB...), exposes various interfaces(REST, JDBC, Java ...), with multi-tenancy, high performance, and resource control.

Pi4J/pi4j - Java I/O library for Raspberry Pi (GPIO, I2C, SPI, UART)

ufo22940268/android-justifiedtextview - android justified textview

glowroot/glowroot - Easy to use, very low overhead, Java APM

mapsforge/mapsforge - Vector map library and writer - running on Android and Desktop.

jnr/jnr-ffi - Java Abstracted Foreign Function Layer

tomakehurst/wiremock - A tool for mocking HTTP services

InterestingLab/waterdrop - 生产环境的海量数据计算产品，文档地址：

klinker-apps/talon-for-twitter-android - The most powerful and beautiful Twitter client available.

zhangdaiscott/jeecg - JEECG是一款基于代码生成器的J2EE快速开发平台，开源界“小普元”超越传统商业企业级开发平台。引领新的开发模式(Online Coding模式(自定义表单) - > 代码生成器模式 - > 手工MERGE智能开发)， 可以帮助解决Java项目90%的重复工作，让开发更多关注业务逻辑。既能快速提高开发效率，帮助公司节省人力成本，同时又不失灵活性。具备：表单配置能力（无需编码）、移动配置能力、工作流配置能力、报表配置能力（支持移动端）、插件开发能力（可插拔）

crashub/crash - The shell for the Java Platform

jfaster/mango - Distributed ORM Framework for Java

ernestoyaquello/VerticalStepperForm - Vertical Stepper Form Library for Android. It follows Google Material Design guidelines.

sword-org/wechat4j - wechat4j is wechat(weixin) develop framework for java 微信开发框架JAVA版，最简单易用微信开发框架

h4de5ing/AndroidCommon - 基于Android系统Api封装常用工具类

facebookarchive/swift - An annotation-based Java library for creating Thrift serializable types and services.

vladmihalcea/flexy-pool - FlexyPool adds metrics and failover strategies to a given Connection Pool, allowing it to resize on demand.

dieforfree/qart4j - QR code ASCII art for java

eclipse-archived/smarthome - Eclipse SmartHome™ project

google/tink - Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

rzwitserloot/lombok - Very spicy additions to the Java programming language.

eclipse/openj9 - Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.

Picovoice/porcupine - On-device wake word detection powered by deep learning.

awslabs/djl - An Engine-Agnostic Deep Learning Framework in Java

youxin11544/MVP-RxJava-Hybride - This is an Android MVP model good architecture design，Which also inherited the Android architecture and HTML 5 interaction。（这是一个Android MVP模型良好的架构设计,同时也做了Android和HTML 5交互架构，用到了RxJava+Retrofit+MVP+泛型缩减mvp+模板模式+命令模式+观察者模式+管理者模式 +简单工厂模式）

florent37/AwesomeBar - Just beautiful

Cuieney/kotlin-life - App界的一股清流 音视频vr应有尽有 完全按照Material design规范设计的App （written with java and Kotlin）

davidmoten/rtree - Immutable in-memory R-tree and R*-tree implementations in Java with reactive api

bluejoe2008/openwebflow - 基于Activiti的工作流引擎扩展，接管了Activiti对活动权限以及用户表的管理，并提供了催办、代办、加签（包括前加签/后加签）、自由跳转、分裂节点等功能

kaitoy/pcap4j - A Java library for capturing, crafting, and sending packets.

bigmeow/JWT - webapp用户身份认证方案 JSON WEB TOKEN 实现Deme示例，Java版

PebbleTemplates/pebble - Java Template Engine

looly/hutool - A set of tools that keep Java sweet.

wikimedia/apps-android-wikipedia - 📱The official Wikipedia app for Android!

akarnokd/RxJavaInterop - Library to convert between RxJava 1.x and 2.x/3.x reactive types, schedulers and resource handles.

Andy671/Dachshund-Tab-Layout - Extended Android Tab Layout with animated indicators that have continuous feedback.

hibernate/hibernate-validator - Hibernate Validator - Jakarta Bean Validation Reference Implementation

lionsoul2014/ip2region - Ip2region is a offline IP location library with accuracy rate of 99.9% and 0.0x millseconds searching performance. DB file is ONLY a few megabytes with all IP address stored. binding for Java,PHP,C,Python,Nodejs,Golang,C#,lua. Binary,B-tree,Memory searching algorithm

apache/lucene-solr - Apache Lucene and Solr open-source search software

zeebe-io/zeebe - Distributed Workflow Engine for Microservices Orchestration

houko/SpringBootUnity - rabbitmq、redis、scheduled、socket、mongodb、Swagger2、spring data jpa、Thymeleaf、freemarker etc. (muti module spring boot project) (with spring boot framework，different bussiness scence with different technology。)

spotify/heroic - The Heroic Time Series Database

airlift/airline - Java annotation-based framework for parsing Git like command line structures

chatopera/cskefu - 🌲 春松客服，多渠道智能客服系统，开源客服系统 ，机器人客服

bugsnag/bugsnag-android - Bugsnag crash monitoring and reporting tool for Android apps

litesuits/android-lite-http - LiteHttp is a simple, intelligent and flexible HTTP framework for Android. With LiteHttp you can make HTTP request with only one line of code! It could convert a java model to the parameter and rander the response JSON as a java model intelligently.

michelelacorte/SwipeableCard - A simple implementation of swipe card like StreetView

Orbiter/anomic_ftp_server - a simple ftp server in java

twitter/Serial - Light-weight, fast framework for object serialization in Java, with Android support.

mrdear/JavaWEB - JavaWEB学习之中的一些Demo(废弃)

0opslab/opslabJutil - Java utils

blipinsk/FlippableStackView - An Android library introducing a stack of Views with the first item being flippable.

bbottema/simple-java-mail - Simple API, Complex Emails (JavaMail smtp wrapper)

apache/sqoop - Mirror of Apache Sqoop

xerial/snappy-java - Snappy compressor/decompressor for Java

kungfoo/geohash-java - Implementation of GeoHashes in java. We try to be/stay compliant to the spec, as far as possible.

pholser/junit-quickcheck - Property-based testing, JUnit-style

rakam-io/rakam-api - 📈 Collect customer event data from your apps. (Note that this project only includes the API collector, not the visualization platform)

apache/mina - Mirror of Apache MINA

wuyouzhuguli/FEBS-Shiro - Spring Boot 2.2.5，Shiro1.4.2 & Layui 2.5.5 权限管理系统。预览地址：http://47.104.70.138:8080/login

line/armeria - Asynchronous RPC/REST library built on top of Java 8, Netty, HTTP/2, Thrift and gRPC

Sable/soot - Soot - A Java optimization framework

liweiwei1419/LeetCode-Solution-in-Good-Style - 我的 LeetCode 做题记录，正在加紧练习中。

Martin404/PayMap - Java后端实现三方支付集成支付宝（国内、国际、移动端、PC端）、微信、银联（acp、upop）、光大（网关、网页）、邮政支付

MachinePublishers/jBrowserDriver - A programmable, embeddable web browser driver compatible with the Selenium WebDriver spec -- headless, WebKit-based, pure Java

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